Temperature. Humidity. Light.
Three complementary measurements help teams understand the conditions around collections, stored materials and occupied rooms.
Temperature, humidity
and light sensor.
Indoor conditions.
Connected to your team.
The Hitelecom H Series temperature, humidity and light sensor measures local air temperature, relative humidity and illuminance for indoor monitoring. Designed for museums, galleries, archives and other managed spaces, it connects conditions at selected points with remote review and configured alerts. Custom sensor configurations can be discussed for additional sensing and installation requirements. Choose H200 LoRa, H300 4G or H500 NB-IoT, then match the sensing layout, light measurement and reporting profile to your project.
°CTemperatureLocal indoor conditions
%RHRelative humidityMoisture in the surrounding air
luxIlluminanceLight at the sensing position
KEY FEATURES
Three measurements.
One clear view of the space.
Connect room conditions, collection environments and light exposure with the people responsible for them.
Measure where it matters
Plan positions around display areas, cases, shelving and room zones. Select the sensing arrangement for the conditions you want to observe.
Your monitoring targets
Agree temperature and humidity limits with the people responsible for the space or collection, then configure the alert workflow.
Three wireless choices
H200 LoRa, H300 4G and H500 NB-IoT support different site networks and deployment plans.
Custom sensors for your project
Match the sensing channels, product form and mounting arrangement to your space. Share your requirements for a project-specific configuration.
Remote project visibility
Connect to Hitelecom Platform or an agreed customer platform for measurement review and configured temperature and humidity alerts.
TEMPERATURE · HUMIDITY · LIGHT · CUSTOM SENSING
See the conditions.
Understand the context.
Room averages tell part of the story. Conditions beside an exhibit, within a display case or near stored materials can differ. A useful monitoring plan identifies both the place being measured and the decision each reading will support.
01
Air temperature
Observe local air conditions through occupied hours, overnight operation and seasonal changes. Use comparable positions when reviewing different room zones.
- Define your measurement
- Specify the expected environment, required accuracy and sensing arrangement.
02
Relative humidity
Follow moisture conditions around the collection or stored material. Review the level and its changes together with temperature and the site's environmental targets.
- Define your measurement
- Identify the room, case or storage zone and the materials it contains.
03
Illuminance · lux
Measure the visible light falling on the selected sensing plane. For exhibits, agree a position and orientation that represent the illuminated object or display area.
- Define your measurement
- Specify the expected light levels, required range and accuracy, and sensing orientation.
04
Custom sensors
Configure sensing channels, product form and installation for your project. Share the measurements you need so we can define a suitable sensor design and confirm its specification.
- Define your measurement
- List the measurements, expected conditions, required performance, mounting constraints and platform interface.
SENSING & INSTALLATIONChoose a representative position.
Choose a representative position.
Keep the light path clear.
Mark each monitoring point on a room or case plan. For air measurements, choose exposure that represents the monitored zone and account for nearby vents, doors and heat sources. For illuminance, keep the sensing face unobstructed and record its orientation. Agree reversible mounting for heritage interiors and collection spaces.
FROM READING TO RESPONSE
From room conditions.
To a considered response.
Build the monitoring profile around the change you want to see. The measurement interval defines when readings are taken; the reporting interval defines when data reaches the platform. Specify both alongside your alert and battery requirements.
Define the points
Identify rooms, cases and material zones. Record the purpose and location of each sensing point.
Set the profile
Agree measurement and reporting intervals, channel specifications and temperature and humidity alert targets.
Review the conditions
Use readings alongside the lighting schedule, room operation and collection-care plan to decide what to investigate or adjust.
CONFIGURATION & OPERATING PROFILEMatched to your site. Agreed for your project.
The published reference configuration is designed for more than 10 years with 10-minute sampling and reporting every four hours. Sampling and reporting intervals can be agreed for the project, and actual service life depends on the battery pack, selected sensor channels, operating temperature and radio conditions. For a temperature, humidity and light installation, confirm the battery plan against the final channel list, reporting profile, operating temperature and network conditions.
APPLICATIONS
Indoor spaces. Different priorities.
The right conditions, at the right point.
Explore 48 monitoring tasks across eight indoor environments, from museum cases and archives to laboratories, sensitive storage and working rooms. Each task identifies what to observe, where to position the sensing point and how the readings support your team.
8 industry categories 48 monitoring tasks
Scenes illustrate installation environments. Measurement channels and positions are selected for each project.
01Museums & display cases6 monitoring tasks +
See the conditions around the collection, from gallery air to individual cases. Temperature and relative humidity establish the local climate; optional illuminance readings support the exhibition lighting plan.
Museum gallery environments
Temperature and relative humidity; optional illuminance at selected display positions.
Build an environmental record for each gallery rather than relying on one reading for the whole museum. Compare display zones through opening hours, evening shutdown and seasonal changes. Collection-care and facilities teams can review the same local readings when planning room settings or investigating a change.
- Measurements to monitor
- Temperature and relative humidity; optional illuminance at selected display positions.
- Measurement point
- Representative display zones, with additional points where layout or room conditions differ.
- Placement & installation
- Use approved wall or freestanding positions with free air exposure and a clear sensing view where light is measured.
- Project details to specify
- Share the gallery plan, collection materials, existing environmental targets and the number of distinct display zones.
Enclosed artifact showcases
Temperature and relative humidity inside the case; optional illuminance where the object is viewed.
Measure the air inside the case as well as the surrounding room when a collection uses a local microclimate. The two records help staff understand how the enclosure responds to room changes and routine opening. Select a discreet sensing position that works with the case design and object layout.
- Measurements to monitor
- Temperature and relative humidity inside the case; optional illuminance where the object is viewed.
- Measurement point
- An approved internal position representing the object compartment, with a separate room reference if required.
- Placement & installation
- Agree the arrangement with the case maker or conservator; maintain seals and keep the device clear of the collection.
- Project details to specify
- Provide case dimensions, compartment layout, buffering or control arrangements and access restrictions.
Textile and costume displays
Temperature and relative humidity; optional illuminance for the textile display.
Give curators a local record for costumes, tapestries and decorated fabrics during an exhibition. Temperature and relative humidity describe the display climate; an illuminance configuration can help staff check the lighting selected for that textile. Review the readings alongside the display schedule and the conservator's material-specific plan.
- Measurements to monitor
- Temperature and relative humidity; optional illuminance for the textile display.
- Measurement point
- Near the displayed material, at a documented light orientation when illuminance is part of the project.
- Placement & installation
- Mount on approved casework or a separate support; preserve viewing space and avoid contact with the textile.
- Project details to specify
- Share textile types, dyes or finishes of concern, display duration, case details and agreed environmental limits.
Manuscript and paper display cases
Temperature and relative humidity; optional illuminance at the displayed paper plane.
Track the display environment for manuscripts, maps and illustrated documents while they are on view. Place the sensing point to represent the page or sheet being exhibited. An optional illuminance record helps staff review lighting changes with the exhibition timetable, while temperature and humidity support the local conservation record.
- Measurements to monitor
- Temperature and relative humidity; optional illuminance at the displayed paper plane.
- Measurement point
- A case position near the displayed sheet, with the light sensor aligned to the chosen measurement plane.
- Placement & installation
- Use an independent support agreed with the conservator; keep sensing openings clear and allow safe case access.
- Project details to specify
- Provide paper and media types, object plane, lighting layout, exhibit dates and conservation requirements.
Natural history specimen displays
Temperature and relative humidity; optional illuminance for selected light-sensitive specimens.
Choose monitoring around the actual specimens in a natural history display. Mounted animals, dried plants and minerals can have different environmental priorities, even within one gallery. Local readings give collection staff a basis for reviewing the display arrangement; optional illuminance is useful where the selected specimens are light sensitive.
- Measurements to monitor
- Temperature and relative humidity; optional illuminance for selected light-sensitive specimens.
- Measurement point
- The specimen compartment or nearby display air, selected by the collection-care team.
- Placement & installation
- Install on approved exhibition furniture without attaching to specimens or interfering with access and inspection.
- Project details to specify
- Identify specimen materials, enclosure design, preservation methods and which displays require light monitoring.
Historic room and furniture displays
Temperature and relative humidity; optional illuminance at selected window-facing objects.
Monitor the conditions around furniture, wall coverings and decorative objects in an interpreted historic room. Compare local readings with room use and the seasonal heating schedule. Optional illuminance near window-facing displays helps staff review the effect of daylight and their existing curtain or shutter routine.
- Measurements to monitor
- Temperature and relative humidity; optional illuminance at selected window-facing objects.
- Measurement point
- Representative collection positions, including a separate perimeter point where the preservation plan calls for it.
- Placement & installation
- Use a reversible, approved support on modern fittings; keep historic surfaces and furnishings untouched.
- Project details to specify
- Share the room plan, object materials, daylight paths, heating schedule and permitted mounting locations.
02Art galleries & exhibitions6 monitoring tasks +
Record conditions where work is presented. Pair local climate readings with selected illuminance measurements so staff can review lighting, exhibition changes and loan requirements using documented sensing positions.
Painting galleries
Temperature and relative humidity; optional illuminance at selected painting display planes.
Follow the climate around paintings across different walls and room zones. Staff can compare trends with HVAC changes and exhibition rearrangement instead of assuming that every hanging position shares the central room reading. Optional illuminance measurements support checks of the lighting agreed for each display area.
- Measurements to monitor
- Temperature and relative humidity; optional illuminance at selected painting display planes.
- Measurement point
- Approved positions near hanging areas, chosen to reflect the artwork environment rather than a supply-air jet.
- Placement & installation
- Keep devices on separate approved fixtures; retain consistent placement when comparing readings over time.
- Project details to specify
- Share artwork supports and media, hanging locations, gallery settings and the lighting plan.
Works-on-paper exhibitions
Temperature and relative humidity; optional illuminance at the works-on-paper display.
Create an environmental record for drawings, watercolours and prints while they are on display. Selected illuminance readings give staff a practical reference when spotlights are adjusted or works are rotated. Review temperature and humidity with the material-specific exhibition plan and the agreed period of display.
- Measurements to monitor
- Temperature and relative humidity; optional illuminance at the works-on-paper display.
- Measurement point
- A documented position and orientation representative of the displayed paper surface.
- Placement & installation
- Use an approved independent mount or exhibition fitting; avoid placing the sensor behind an unrepresentative shadow.
- Project details to specify
- Provide media sensitivity, framing details, lighting positions, rotation schedule and accepted conservation limits.
Photographic exhibitions
Temperature and relative humidity; optional illuminance for displayed photographic prints.
Support the display plan for photographic prints with local climate and, where specified, illuminance readings. Photographic processes differ, so the curator or conservator selects the targets. Staff can review the environment after lighting adjustments and retain a contextual record for the duration of the exhibition.
- Measurements to monitor
- Temperature and relative humidity; optional illuminance for displayed photographic prints.
- Measurement point
- Selected print display positions representing the lighting and room conditions of each exhibition section.
- Placement & installation
- Mount clear of frames on approved gallery fixtures, with repeatable light orientation where that channel is supplied.
- Project details to specify
- List photographic processes, framing or glazing, exhibit dates and the conservation team's display requirements.
Temporary exhibition installations
Temperature and relative humidity; optional illuminance for the new display arrangement.
Establish a local baseline before a temporary exhibition opens, then compare readings as casework, lighting and room use change. This gives the installation team and curator an environmental reference for their handover. Select sensing points around the completed display rather than keeping positions from a previous layout.
- Measurements to monitor
- Temperature and relative humidity; optional illuminance for the new display arrangement.
- Measurement point
- New case and wall zones identified during the exhibition installation review.
- Placement & installation
- Use removable approved fittings and document each location so readings remain interpretable through the exhibition.
- Project details to specify
- Share the installation plan, materials on display, setup dates, sensing duration and handover requirements.
Loan exhibitions and receiving rooms
Temperature and relative humidity; optional illuminance where the loan agreement requires it.
Prepare a record of the exhibition and receiving-room climate for discussions with the lender. Match sensing positions and reporting arrangements to the loan requirements. Teams can review local readings before opening and during display, with optional illuminance monitoring at the positions covered by the exhibition agreement.
- Measurements to monitor
- Temperature and relative humidity; optional illuminance where the loan agreement requires it.
- Measurement point
- Agreed receiving and display positions, with identifiers matching the loan documentation.
- Placement & installation
- Confirm mounting, access and measurement arrangements with the registrar and conservator before the works arrive.
- Project details to specify
- Provide the loan conditions, venue layout, handling timetable, required records and responsibilities for reviewing readings.
Daylit and skylit galleries
Temperature and relative humidity; optional illuminance in selected daylight-affected display zones.
Compare the environment in display zones that receive changing daylight. Optional illuminance readings help staff review their existing blinds, shading and lighting schedules, while temperature and humidity show the local climate. Position each sensor around the exhibition objective and retain its orientation when comparing daytime patterns.
- Measurements to monitor
- Temperature and relative humidity; optional illuminance in selected daylight-affected display zones.
- Measurement point
- A representative display plane and a documented climate point in the daylight-affected gallery area.
- Placement & installation
- Agree positions that avoid accidental shading; use approved fixtures and check light-channel performance against the intended conditions.
- Project details to specify
- Share window or rooflight orientation, seasonal daylight patterns, shading arrangements and display priorities.
03Archives, libraries & special collections6 monitoring tasks +
Understand the conditions around records and rare materials, from closed stacks to supervised use. Prioritise temperature and humidity in storage, adding illuminance where materials are displayed or routinely exposed to light.
Archive repositories and mobile stacks
Temperature and relative humidity; optional illuminance where a storage exposure question has been identified.
Build a local climate record for archive aisles and shelving zones. Compare selected positions when reviewing seasonal patterns or changes to the storage layout. Temperature and humidity are the main priorities in closed repositories; add a light channel only where there is a defined exposure question.
- Measurements to monitor
- Temperature and relative humidity; optional illuminance where a storage exposure question has been identified.
- Measurement point
- Representative shelving heights and aisle zones selected through the repository monitoring plan.
- Placement & installation
- Mount clear of moving shelving and boxes; retain air exposure and safe access for repository staff.
- Project details to specify
- Share repository dimensions, shelving arrangement, material types, current targets and the proposed monitoring period.
Rare-book and special-collection stores
Temperature and relative humidity; optional illuminance for selected exposed collection positions.
Follow the climate near rare books and bound special collections through the year. Local records help librarians compare storage zones and review the effect of changes to heating or room use. Keep the focus on temperature and humidity in enclosed storage, with selected light monitoring where exposure matters.
- Measurements to monitor
- Temperature and relative humidity; optional illuminance for selected exposed collection positions.
- Measurement point
- Representative shelves or cabinet air, separated from heaters, vents and direct window influence unless those are being studied.
- Placement & installation
- Use approved shelf or wall supports and leave circulation and collection retrieval routes clear.
- Project details to specify
- Provide book and binding types, store layout, heating arrangements and special conservation requirements.
Special-collection reading rooms
Temperature and relative humidity; optional illuminance at a selected reading surface.
Record the local climate where readers consult rare materials, and select illuminance monitoring at the reading surface when exposure is part of the care plan. Staff can review readings against opening hours, daylight and handling sessions, supporting a practical discussion of room settings and collection-use arrangements.
- Measurements to monitor
- Temperature and relative humidity; optional illuminance at a selected reading surface.
- Measurement point
- Representative reading positions, with a light-sensing plane aligned to the surface used for materials.
- Placement & installation
- Use an approved unobtrusive fitting clear of readers, book supports and handling equipment.
- Project details to specify
- Share room opening hours, daylight conditions, material-use policies, table layout and monitoring priorities.
Map, plan and oversized-paper cabinets
Temperature and relative humidity in selected cabinet or nearby room positions.
Measure the local climate around large-format paper held in flat cabinets. Compare cabinet and room positions where the storage plan needs that distinction, particularly after rearrangement or changes in room operation. Temperature and humidity are the primary channels; routine dark storage does not require light monitoring by default.
- Measurements to monitor
- Temperature and relative humidity in selected cabinet or nearby room positions.
- Measurement point
- Approved cabinet air spaces or a nearby representative point selected without disturbing the stored sheets.
- Placement & installation
- Keep the device clear of drawers and paper; confirm sufficient clearance and air access before selecting an internal arrangement.
- Project details to specify
- Provide cabinet dimensions, paper media, drawer access, surrounding room layout and target conditions.
Photographic print stores
Temperature and relative humidity; optional illuminance for a defined handling or exposure study.
Document the room environment for photographic print collections stored in protective boxes and cabinets. Collection staff can compare selected locations and seasonal trends against requirements for the photographic processes in their care. Specify temperature and humidity first; use a light channel only for an identified handling or exposure study.
- Measurements to monitor
- Temperature and relative humidity; optional illuminance for a defined handling or exposure study.
- Measurement point
- Room or cabinet positions representing the selected photographic print collection.
- Placement & installation
- Use approved supports clear of boxes and airflow obstructions, with easy access for routine checks.
- Project details to specify
- Identify photographic processes, storage temperatures, enclosure arrangements and the intended review period.
Digitisation and scanning workrooms
Temperature and relative humidity; optional ambient illuminance at selected handling positions.
Review the local environment while documents and books move through a digitisation workroom. Temperature and humidity provide context for handling sessions and room changes. Optional illuminance readings can describe ambient light at selected work positions when useful; photographic exposure and reproduction-light testing remain part of the imaging workflow.
- Measurements to monitor
- Temperature and relative humidity; optional ambient illuminance at selected handling positions.
- Measurement point
- Material staging and handling zones chosen alongside the scanning equipment layout.
- Placement & installation
- Mount clear of moving camera equipment and direct equipment heat, using positions agreed by the imaging and conservation teams.
- Project details to specify
- Share material types, handling times, equipment heat sources, room layout and the environmental question to be answered.
04Collection stores & conservation6 monitoring tasks +
Keep collection care connected to the conditions in storage and work areas. Select local climate points by material and room use; include illuminance only where display, handling or a conservation question makes it useful.
Mixed-object collection stores
Temperature and relative humidity; optional illuminance for identified exposed objects or handling zones.
Give collection managers a climate record for the different storage zones in a mixed-object store. The same room may contain objects with different requirements, so sensing positions and review criteria follow the collection plan. Compare local readings during routine inspections, seasonal reviews and changes to the shelving layout.
- Measurements to monitor
- Temperature and relative humidity; optional illuminance for identified exposed objects or handling zones.
- Measurement point
- Representative shelves and storage zones, with additional positions for distinct enclosure or room conditions.
- Placement & installation
- Use approved racking or wall supports with clear air exposure, safe retrieval routes and accessible device identification.
- Project details to specify
- List collection materials, enclosure types, room plan, existing environmental objectives and inspection routines.
Painting racks and picture stores
Temperature and relative humidity; optional illuminance for a defined storage exposure question.
Monitor the local climate around stored paintings and compare selected rack positions with the room reference. Staff can use the record during storage reviews and changes to rack occupancy. Temperature and humidity are the core measurements; light monitoring is selected only if an exposure or handling routine is being assessed.
- Measurements to monitor
- Temperature and relative humidity; optional illuminance for a defined storage exposure question.
- Measurement point
- Approved positions beside picture racks, with selected room perimeter points where the collection plan requires comparison.
- Placement & installation
- Keep sensors clear of sliding racks, picture frames and handling routes; preserve repeatable positions.
- Project details to specify
- Provide painting materials, rack layout, room climate objectives, access schedule and any perimeter concerns.
Textile drawers and costume stores
Temperature and relative humidity in selected textile storage positions.
Track the climate around stored costumes and flat textiles, choosing cabinet or room positions according to the collection arrangement. Local readings help staff review the conditions after access, seasonal changes or storage reorganisation. Temperature and humidity take priority; protected dark storage calls for light measurement only when there is a specific need.
- Measurements to monitor
- Temperature and relative humidity in selected textile storage positions.
- Measurement point
- A representative costume-store location or an approved cabinet space that does not contact the material.
- Placement & installation
- Maintain drawer clearance and safe garment access; agree discreet supports with the collection-care team.
- Project details to specify
- Share textile materials, storage format, cabinet dimensions, room targets and planned access frequency.
Collection receiving and assessment rooms
Temperature and relative humidity; optional illuminance at agreed assessment positions.
Record the room climate while incoming objects are assessed and prepared for their next storage or exhibition position. Staff can compare the receiving room with destination areas and retain context for the handling timeline. The registrar or conservator defines the observations needed for each material and arrival process.
- Measurements to monitor
- Temperature and relative humidity; optional illuminance at agreed assessment positions.
- Measurement point
- Receiving and staging locations selected to represent the object environment during the agreed observation period.
- Placement & installation
- Use separate approved supports clear of crates and handling traffic; document locations and room-operation changes.
- Project details to specify
- Provide arrival and unpacking procedures, collection materials, staging duration and destination climate requirements.
Conservation workrooms
Temperature and relative humidity; optional ambient illuminance for selected work positions.
Make the workroom environment visible during examination, documentation and bench work. Temperature and humidity readings provide context for the workspace and its daily operation. Optional illuminance monitoring can support a defined ambient-light review, with the conservator selecting positions and interpreting readings alongside the treatment and examination requirements.
- Measurements to monitor
- Temperature and relative humidity; optional ambient illuminance for selected work positions.
- Measurement point
- Representative bench and object-staging air, clear of concentrated process heat and local equipment exhaust.
- Placement & installation
- Use approved independent supports and a layout that preserves safe working space, cleaning access and material handling.
- Project details to specify
- Share room use, work schedules, treatment-related environmental requirements and the positions that need comparison.
Framing and exhibit-preparation rooms
Temperature and relative humidity; optional illuminance for an exhibition-lighting mock-up.
Follow the local climate where frames, mounts and collection materials are assembled for display. Staff can compare preparation-room conditions with the destination gallery before installation. Optional illuminance readings are useful when checking a mock-up display; select that measurement around the intended exhibition plane rather than general workshop brightness.
- Measurements to monitor
- Temperature and relative humidity; optional illuminance for an exhibition-lighting mock-up.
- Measurement point
- Material-staging and assembly zones, plus the selected display plane for any lighting mock-up.
- Placement & installation
- Mount on approved workroom fittings clear of benches, cutting equipment and collection handling paths.
- Project details to specify
- Provide the material and mounting plan, destination gallery requirements, preparation schedule and any lighting mock-up details.
05Laboratories & pharmaceutical spaces6 monitoring tasks +
Record room conditions where the method, material or storage instructions require them. Select temperature, humidity and optional illuminance around the actual procedure, and agree calibration and record requirements with the project team.
Analytical laboratory rooms
Temperature and relative humidity; optional illuminance when the method specifies a light condition.
Add a local environmental record to laboratory routines when room temperature or humidity is relevant to the method. Staff can review readings with equipment use and test schedules, then investigate changes against the laboratory's own acceptance criteria. Select positions that represent the work area and agree the required verification arrangements.
- Measurements to monitor
- Temperature and relative humidity; optional illuminance when the method specifies a light condition.
- Measurement point
- Representative analytical work areas identified in the laboratory environmental-monitoring plan.
- Placement & installation
- Use approved positions clear of instrument heat, hood exhaust and cleaning routes; confirm materials and calibration needs.
- Project details to specify
- Share method requirements, room layout, acceptance criteria, record needs and the laboratory's verification procedure.
Precision weighing rooms
Temperature and relative humidity around the selected weighing area.
Give weighing staff a local temperature and humidity record for reviewing the conditions around precision balances. The data can be considered alongside weighing sessions and the laboratory's measurement procedure. Choose a room point that represents the balance area without affecting access, instrument operation or the draught-control arrangement.
- Measurements to monitor
- Temperature and relative humidity around the selected weighing area.
- Measurement point
- A representative position near the balance area, agreed by the laboratory responsible for the measurement procedure.
- Placement & installation
- Keep the device clear of the balance enclosure and vibration-sensitive bench, with unobstructed room-air sensing.
- Project details to specify
- Provide balance-room requirements, working schedule, instrument layout and the environmental record needed for the method.
Ambient sample-retention stores
Temperature and relative humidity; optional illuminance where sample-storage instructions require it.
Track the room conditions for samples assigned to ambient storage under their approved instructions. Local readings give the laboratory context for periodic reviews and changes to the storage arrangement. Select an illuminance channel only where the sample or procedure includes a light-exposure requirement, and agree the required records before deployment.
- Measurements to monitor
- Temperature and relative humidity; optional illuminance where sample-storage instructions require it.
- Measurement point
- Representative shelf zones selected for the ambient sample-storage room.
- Placement & installation
- Mount clear of sample containers and retrieval routes, with positions and device identifiers recorded in the storage plan.
- Project details to specify
- List sample types, required storage conditions, shelf layout, storage duration and record-review responsibilities.
Pharmaceutical ambient stockrooms
Temperature and relative humidity; optional illuminance where the approved product-storage conditions require it.
Build a local room-condition record for medicines with approved ambient storage instructions. Select positions around the storage layout and any mapping already carried out by the facility. Temperature, humidity and optional illuminance are chosen to match product requirements; the quality team defines acceptance, calibration and record-review procedures.
- Measurements to monitor
- Temperature and relative humidity; optional illuminance where the approved product-storage conditions require it.
- Measurement point
- Storage points selected from the facility assessment or mapping, rather than a convenient central wall alone.
- Placement & installation
- Confirm hygienic mounting, access, connectivity and required device verification with the facility and quality team.
- Project details to specify
- Provide product-storage instructions, layout or mapping findings, monitoring requirements and the intended system integration.
Pharmaceutical material and packaging stores
Temperature and relative humidity; optional illuminance for specified light-sensitive stored materials.
Monitor local conditions where raw materials or packaging components have defined environmental storage requirements. Keep sensing positions associated with the relevant zone and material specification. Staff can review the room record during storage checks and facility changes, with optional light measurement for materials whose approved instructions make it relevant.
- Measurements to monitor
- Temperature and relative humidity; optional illuminance for specified light-sensitive stored materials.
- Measurement point
- Approved material-storage and quarantine zones, selected through the facility's storage assessment.
- Placement & installation
- Use positions that preserve segregation, cleaning access and identification; confirm suitability with the facility quality team.
- Project details to specify
- Share material specifications, storage-zone plan, acceptance criteria, verification needs and reporting arrangements.
Research instrument and preparation rooms
Temperature and relative humidity; optional illuminance for a defined procedure or material.
Follow the local climate around shared research instruments and preparation workspaces when the procedure calls for it. A room-condition record helps staff compare working sessions with changes in room operation. Optional illuminance can be selected for a defined light-sensitive procedure, with the measurement position and performance agreed for that task.
- Measurements to monitor
- Temperature and relative humidity; optional illuminance for a defined procedure or material.
- Measurement point
- Instrument-adjacent room air and preparation positions selected to answer the laboratory's monitoring question.
- Placement & installation
- Use approved fixtures clear of equipment heat and active processes; maintain access for cleaning and routine checks.
- Project details to specify
- Share room functions, instrument environmental requirements, process schedules and the specific measurements needed.
06Electronics, data centres & cleanrooms6 monitoring tasks +
Prioritise the local temperature and humidity around equipment, components and controlled work areas. Select extra sensing positions by inlet, storage or process needs; add illuminance when there is a defined lighting question.
Data-centre rack inlets
Temperature and relative humidity at selected equipment inlet-air positions.
Measure the air presented to IT equipment at selected rack inlets instead of relying only on a room-average reading. Compare local temperature and humidity trends with rack changes and cooling operation. Position choice follows the equipment environment and facility plan; light measurement is not a default requirement for this application.
- Measurements to monitor
- Temperature and relative humidity at selected equipment inlet-air positions.
- Measurement point
- Representative rack-front inlet locations and heights selected by the data-centre facilities team.
- Placement & installation
- Use approved rack fixtures that do not obstruct airflow, doors or cabling; select sensing arrangements suited to the inlet measurement objective.
- Project details to specify
- Share rack layout, inlet locations, equipment requirements, cooling arrangement and the monitoring platform.
Edge IT and network-equipment rooms
Temperature and relative humidity at selected room and equipment inlet positions.
Give facilities staff a local climate record for small server rooms and network closets. These spaces can operate differently from the surrounding building, so choose sensing points around the equipment air path and room layout. Temperature and humidity readings can support routine reviews after equipment additions or changes in room operation.
- Measurements to monitor
- Temperature and relative humidity at selected room and equipment inlet positions.
- Measurement point
- Equipment inlet air and a representative room reference where comparison supports the site monitoring plan.
- Placement & installation
- Keep the device clear of exhaust heat and obstructed cabinet corners; use approved fixtures with accessible maintenance routes.
- Project details to specify
- Provide cabinet dimensions, equipment arrangement, cooling provision, access schedule and connectivity requirements.
Electronics assembly work areas
Temperature and relative humidity; optional illuminance at selected inspection or assembly tasks.
Record the temperature and humidity experienced in selected electronics assembly zones. The local record gives the process team context when reviewing room conditions, seasonal changes or work-area arrangements. Use it alongside the facility's established component-handling and ESD programme, with optional illuminance for a defined task-lighting review.
- Measurements to monitor
- Temperature and relative humidity; optional illuminance at selected inspection or assembly tasks.
- Measurement point
- Representative assembly and inspection zones agreed by the process and facility teams.
- Placement & installation
- Use approved fixtures clear of machinery, operator movement and local equipment heat; follow site mounting and cleaning requirements.
- Project details to specify
- Share the process plan, component requirements, environmental criteria and the positions that need comparison.
Electronic-component storage
Temperature and relative humidity in selected component-room or approved cabinet positions.
Follow the room conditions around electronic-component stock, and select cabinet monitoring where the actual storage arrangement requires it. Staff can review local readings alongside packaging, desiccant and handling procedures. Temperature and humidity are the core channels; the component supplier's requirements determine the targets and necessary verification.
- Measurements to monitor
- Temperature and relative humidity in selected component-room or approved cabinet positions.
- Measurement point
- Storage zones chosen by component sensitivity and the supplied packaging or cabinet arrangement.
- Placement & installation
- Confirm available space, air exposure and access before specifying a cabinet arrangement; keep component-handling routes clear.
- Project details to specify
- Provide component storage instructions, packaging and cabinet types, zone layout and the monitoring criteria.
Cleanroom environmental support
Temperature and relative humidity; optional illuminance where the controlled process specifies it.
Add local temperature and humidity observations to the environmental plan for a cleanroom or controlled workspace where those conditions matter to the process. Agree the sensing location, mounting materials, cleaning access and verification needs with the facility. Optional illuminance is selected only for a specific process or task-lighting objective.
- Measurements to monitor
- Temperature and relative humidity; optional illuminance where the controlled process specifies it.
- Measurement point
- Approved work-zone locations selected through the facility's environmental assessment.
- Placement & installation
- Review enclosure materials, mounting, cleanability and sensing exposure with the facility before choosing the supplied configuration.
- Project details to specify
- Provide the process requirements, cleanroom plan, installation restrictions, verification expectations and desired platform integration.
Metrology and calibration rooms
Temperature and relative humidity for the selected measurement workspace.
Record local temperature and humidity as part of the context for measurement work. Laboratories can review the room record with measurement sessions and their uncertainty assessment. Select sensing points and verification requirements around the actual instruments and procedures; the laboratory determines the acceptable conditions for each task.
- Measurements to monitor
- Temperature and relative humidity for the selected measurement workspace.
- Measurement point
- Representative instrument and reference-artifact areas agreed with the laboratory responsible for the measurement.
- Placement & installation
- Use independent approved supports clear of instrument heat and measurement travel; retain documented, repeatable positions.
- Project details to specify
- Share instrument environmental requirements, room layout, measurement schedules and required calibration or verification evidence.
07Indoor production & sensitive materials6 monitoring tasks +
Match monitoring to the materials and work taking place indoors. Temperature and humidity describe the local storage or preparation environment; optional illuminance supports selected daylight, display or task-related questions.
Print-paper storage and preparation
Temperature and relative humidity; optional illuminance for a defined daylight-exposure concern.
Compare the local climate in the paper store with the pressroom or printing work area. The two records help staff review environmental differences when paper is moved for use. Temperature and humidity are the priority measurements; optional illuminance is useful only where exposure to daylight is part of the storage question.
- Measurements to monitor
- Temperature and relative humidity; optional illuminance for a defined daylight-exposure concern.
- Measurement point
- Representative paper storage and preparation positions selected alongside the material-flow route.
- Placement & installation
- Mount clear of paper stacks, direct machine heat and handling paths; retain air exposure around the sensing point.
- Project details to specify
- Share paper types, store-to-workroom workflow, supplier instructions and the positions to be compared.
Textile and fabric material stores
Temperature and relative humidity; optional illuminance for selected exposed fabric stock.
Build a local temperature and humidity record around textile stock and preparation areas. Different fibres and finishes call for different handling and storage requirements, so the material team sets the review criteria. Select optional illuminance when daylight exposure or a particular material makes light part of the storage assessment.
- Measurements to monitor
- Temperature and relative humidity; optional illuminance for selected exposed fabric stock.
- Measurement point
- Representative fabric shelves, roll-storage zones and preparation areas identified by the material team.
- Placement & installation
- Use approved supports clear of stock and handling equipment; avoid contact with fabrics and preserve access for routine inspection.
- Project details to specify
- Provide fibre and finish types, supplier storage instructions, room layout and exposure concerns.
Musical instrument rooms
Temperature and relative humidity; optional illuminance for an identified window-exposure question.
Follow the local climate where pianos and other humidity-sensitive instruments are stored or used. Staff can compare the room record with heating schedules, rehearsals and maintenance observations. Temperature and humidity are the core channels; optional illuminance can be specified if direct daylight at a particular instrument is being reviewed.
- Measurements to monitor
- Temperature and relative humidity; optional illuminance for an identified window-exposure question.
- Measurement point
- Representative instrument-room air and selected window-side positions when the care plan requires comparison.
- Placement & installation
- Use approved independent supports clear of the instruments, performers and heating or cooling outlets.
- Project details to specify
- Share instrument types, manufacturer care requirements, room use, daylight layout and the monitoring period.
Optical and precision-equipment stores
Temperature and relative humidity; optional illuminance where the equipment or material instructions specify it.
Record the local climate for equipment and spare parts with defined environmental storage requirements. Select room or cabinet points according to the actual storage instructions and packaging. Staff can review the readings during stock checks and facility changes, adding a light channel only when the stored material requires an exposure study.
- Measurements to monitor
- Temperature and relative humidity; optional illuminance where the equipment or material instructions specify it.
- Measurement point
- Selected shelving or approved cabinet positions representing the stored equipment and its packaging arrangement.
- Placement & installation
- Keep sensing openings exposed, allow cabinet access and follow supplier and facility restrictions on internal installation.
- Project details to specify
- Provide equipment storage requirements, packaging types, cabinet layout and the required monitoring criteria.
3D-printing material storage
Temperature and relative humidity in selected material-room or approved dry-storage positions.
Track room or approved dry-storage air conditions around moisture-sensitive printing materials. The record helps staff review the storage environment alongside the filament supplier's drying, packaging and handling instructions. Select the sensing arrangement for the available space and intended conditions, with temperature and humidity as the primary measurements.
- Measurements to monitor
- Temperature and relative humidity in selected material-room or approved dry-storage positions.
- Measurement point
- Filament storage and preparation zones selected around the material handling workflow.
- Placement & installation
- Confirm clearance, sensing exposure and suitable performance for the intended storage conditions before choosing a cabinet arrangement.
- Project details to specify
- Share filament types, supplier storage instructions, enclosure dimensions and the environmental question to be answered.
Botanical specimen preparation and storage
Temperature and relative humidity; optional illuminance for selected specimen handling or display positions.
Document the local climate around dried plant specimens and preparation materials. Staff can compare workroom and storage readings while reviewing room operation and handling arrangements. Temperature and humidity are the routine focus, with optional illuminance where specimens are handled or displayed under a defined light-exposure plan.
- Measurements to monitor
- Temperature and relative humidity; optional illuminance for selected specimen handling or display positions.
- Measurement point
- Representative specimen-preparation and dry-storage areas selected by the collection or research team.
- Placement & installation
- Use approved supports clear of specimens, presses and storage drawers, maintaining safe handling and inspection access.
- Project details to specify
- Share specimen and preparation types, storage arrangement, room requirements and exposure priorities.
08Historic buildings, learning & visitor spaces6 monitoring tasks +
Compare conditions where people and collections share the building. Select room positions by the observation goal, with optional illuminance for daylight or task-related reviews, and use findings alongside the facility or conservation plan.
Historic interiors and seasonal buildings
Temperature and relative humidity; optional illuminance around selected daylight-affected features.
Build an environmental record for historic rooms across heating seasons and periods of use. Compare representative interior positions with selected perimeter locations where the conservation plan needs that context. Optional illuminance readings can support a review of daylight around finishes or furnishings, using mounting arrangements approved for the building.
- Measurements to monitor
- Temperature and relative humidity; optional illuminance around selected daylight-affected features.
- Measurement point
- Approved room and perimeter positions representing the fabric or collection environment under observation.
- Placement & installation
- Use reversible supports on approved modern fixtures and preserve the historic fabric and visitor routes.
- Project details to specify
- Share building use, materials or collections of concern, heating schedule, room plan and mounting permissions.
Classrooms and learning rooms
Temperature and relative humidity; optional illuminance at selected learning or daylight positions.
Compare temperature and humidity across selected teaching spaces and review how readings change through the school day. Optional illuminance measurements can support a defined daylight or desk-lighting review. The facility team selects representative room positions and considers the readings alongside occupancy schedules and the building's wider indoor-environment assessment.
- Measurements to monitor
- Temperature and relative humidity; optional illuminance at selected learning or daylight positions.
- Measurement point
- Representative occupied room zones and a documented measurement plane for any task-lighting study.
- Placement & installation
- Mount securely clear of occupants and teaching equipment, with air exposure and light orientation matched to the observation goal.
- Project details to specify
- Provide room layouts, teaching schedules, existing concerns, daylight arrangements and the intended monitoring period.
Public library reading and shelving areas
Temperature and relative humidity; optional illuminance for selected shelf or reading-surface exposure.
Review the local climate where public-library collections and readers share the space. Compare selected shelving and reading areas through opening hours and seasonal operation. Optional illuminance monitoring can support a targeted study of window-side shelves or reading positions, while the library decides the priorities for material care and room use.
- Measurements to monitor
- Temperature and relative humidity; optional illuminance for selected shelf or reading-surface exposure.
- Measurement point
- Representative collection shelves and reading zones, with extra positions for defined daylight questions.
- Placement & installation
- Use secure approved fixtures clear of books, visitors and cleaning access; document the sensing purpose of each point.
- Project details to specify
- Share shelving layout, opening hours, window positions, collection types and the room-management objectives.
Visitor centres and reception spaces
Temperature and relative humidity; optional illuminance for selected interpretation displays or daylight zones.
Compare the local climate in reception, orientation and interpretation areas through their operating schedule. Optional illuminance readings can be selected for display panels or daylight-related questions. Facilities staff can review temperature and humidity with room use and nearby collection or exhibition requirements, using positions that represent the intended area.
- Measurements to monitor
- Temperature and relative humidity; optional illuminance for selected interpretation displays or daylight zones.
- Measurement point
- Representative visitor-space air and agreed display positions, selected separately when their purposes differ.
- Placement & installation
- Use secure approved fixtures with clear sensing exposure, discreet placement and accessible maintenance routes.
- Project details to specify
- Provide the space plan, opening schedule, display materials, daylight arrangement and the monitoring objective.
Places of worship and heritage halls
Temperature and relative humidity; optional illuminance at selected heritage features exposed to daylight.
Follow the local climate around wooden fittings, textiles and heritage features in buildings used intermittently. Staff can compare readings with heating periods and event schedules when reviewing the environment. Select optional illuminance at daylight-affected objects or finishes, and agree mounting with those responsible for the historic interior.
- Measurements to monitor
- Temperature and relative humidity; optional illuminance at selected heritage features exposed to daylight.
- Measurement point
- Representative occupied and collection positions chosen around the building's use and conservation priorities.
- Placement & installation
- Use reversible approved supports clear of historic surfaces, ceremonial activity and visitor or congregation routes.
- Project details to specify
- Share building use, heritage materials, heating schedule, daylight paths and permitted installation positions.
Indoor plant collections and conservatories
Temperature and relative humidity; optional illuminance for selected plant-display positions.
Compare the local environment around indoor plant displays and sheltered conservatory areas. Temperature, humidity and optional illuminance can describe differences between selected positions through the day. Horticultural staff interpret the readings against the needs of the plants and their care routine, with the light configuration agreed for the observation objective.
- Measurements to monitor
- Temperature and relative humidity; optional illuminance for selected plant-display positions.
- Measurement point
- Representative plant-display air and light positions chosen by the horticultural team.
- Placement & installation
- Keep sensing openings clear of foliage and irrigation spray; confirm suitability for the expected environment and selected light conditions.
- Project details to specify
- Share plant types, indoor layout, daylight or lamp arrangements, watering routine and the intended observation period.
SERIES & CONFIGURATIONS
The right design.
The right configuration.
One monitoring purpose. Three wireless options. Select the network first, then confirm the temperature, humidity and light configuration for the space.
H200LoRa
For a planned site network
Coordinate the gateway, indoor coverage and platform connection for a group of sensing points.
Discuss this configuration ↗H3004G Cat.1
For cellular monitoring
Confirm regional network support, SIM provisioning and signal conditions at the intended indoor location.
Discuss this configuration ↗H500NB-IoT
For an NB-IoT deployment
Check local operator service and the reporting requirements of the monitoring project.
Discuss this configuration ↗| Product series | H200 / H300 / H500 |
|---|---|
| Measurements | Air temperature · Relative humidity · Illuminance |
| Temperature range · published T&H reference | −20°C to +80°C |
| Humidity range · published T&H reference | 0–100% RH |
| Typical temperature accuracy · T&H reference | ±0.2°C |
| Typical humidity accuracy · T&H reference | ±2% RH |
| Light measurement | Illuminance in lux; range, resolution and accuracy specified for the supplied configuration |
| Sensing arrangement | Integrated terminal or project-specific probe arrangement, according to supplied configuration |
| Published T&H probe option | Cable-mounted slotted sintered probe |
| Wireless options | H200: LoRa · H300: 4G Cat.1 · H500: NB-IoT |
| Platform connection | Hitelecom Platform or an agreed customer platform; MQTT support on the selected communication path |
| Published T&H enclosure protection | Specified for the supplied THL configuration and installation environment |
| Device configuration | NFC activation and configuration on supported terminals |
| Remote firmware | OTA on supported configurations |
| T&H reference battery design | Reference design: >10 years with 10-minute sampling and 4-hour reporting; actual service life depends on configuration and operating conditions. |
| Installation and customization | Mounting and sensing layout selected for the project; OEM/ODM requirements by agreement |
Bring the specification back to your project.
Describe the space
Share the application, room or case plan, country, point count and installation constraints.
Define the measurement
Confirm temperature, humidity and light requirements, expected conditions and the required channel performance.
Agree the deployment
Select the network, platform, mounting arrangement, reporting profile and quotation.
CONNECTIVITY & INTEGRATION
Your site.
Your data destination.
Choose Hitelecom Platform or discuss a customer platform connection. Confirm the data fields, units, device identifiers, communication path and alert responsibilities before deployment.
For distributed locations
Indoor sensing point→Mobile network→Hitelecom Platform
or your platform
or your platform
Select the modem and regional bands around operator availability and coverage at the transmitter position. Agree the reporting profile, power arrangement and notification workflow.
- Installation country and operator
- Signal at the actual mounting position
- Sampling, reporting and required alert response
For points across one site
Indoor sensing points→Receiver / gateway→Hitelecom Platform
or your platform
or your platform
Match the supplied radio protocol, regional settings and receiver or gateway. Specify any LoRaWAN requirement with the model and complete onward connection.
- Device protocol and gateway compatibility
- Site layout and radio coverage
- Gateway power and onward data connection
Make the first reading useful.
Agree device identity, sensing point or channel, temperature, humidity and light units, and timestamps in a sample message. Check the endpoint and supported authentication, then test the complete path to the intended platform and recipients.
Discuss platform integration ↗ANSWERS FOR YOUR PROJECT
Frequently
asked questions.
Practical answers for choosing measurement points, collection targets and a wireless monitoring configuration.
Ask about your project ↗What does a temperature, humidity and light sensor measure?
It measures air temperature, relative humidity and illuminance at selected indoor sensing points. Illuminance is expressed in lux and describes the visible light falling on a surface.
Specify the channels, sensing arrangement and measurement performance for the supplied Hitelecom configuration.
Why monitor temperature, humidity and light together in a museum?
They describe different parts of the environment around a collection. Temperature and humidity observations support climate review; light observations support decisions about display lighting and exposure schedules.
Reading them in the context of the exhibit, its materials and opening hours gives conservators and facilities teams a shared basis for discussion.
How should we choose temperature, humidity and light targets for collections?
Start with the collection's materials, their condition, the existing environment and any agreed loan or exhibition requirements. Ask the conservation team to define the targets for each room or case.
Temperature and humidity limits can then inform the alert configuration, while light readings can be compared with the agreed display plan.
Where should sensors be placed in galleries, archives and display cases?
Place the air-sensing point where it represents the collection or zone you want to monitor. Consider shelving height, nearby walls, vents and doors. Treat an enclosed case as its own monitoring location when its internal conditions are important.
Record the point on the site plan and agree the terminal or probe arrangement before installation.
Where should the light-sensing face be positioned for an exhibit?
Choose a position and orientation that represent the illuminated surface or display area being assessed. Keep the sensing face clear of shadows from the enclosure, mounts or nearby objects, and record its direction.
Use a commissioning light check at the exhibit to confirm that the fixed monitoring position answers the intended lighting question.
How are lux readings used when reviewing exhibition lighting?
Compare the measured light level with the exhibit's lighting target and note how it changes with daylight, lamp settings and opening hours. Both intensity and duration matter when planning exposure for light-sensitive materials.
If the project requires cumulative exposure analysis, include time-stamped illuminance data, units and the calculation workflow in the platform brief.
How should measurement and reporting intervals be selected?
Choose the measurement interval around the changes you need to observe, such as lighting schedules, case access or room operation. Choose the reporting interval around the team's remote-review and alert needs.
Agree both with the required data coverage and battery plan. A project intended to study brief changes needs a different profile from a long-term seasonal overview.
Which wireless model and platform should we choose for an indoor installation?
Choose H200 for LoRa, H300 for 4G or H500 for NB-IoT. Evaluate coverage at the actual monitoring points, including enclosed cases, basement stores and internal rooms.
For LoRa, plan the gateway and platform path. For cellular models, confirm local network service and provisioning. Hitelecom Platform or an agreed customer platform can form the monitoring destination.
What measurement performance and calibration information should we specify?
Specify the expected operating conditions and required range, accuracy and resolution for each channel. For light, include the expected low-light or brighter-room conditions and sensing orientation.
Agree how readings will be checked at commissioning, which calibration documents the project needs and a review schedule suited to the installation. Compare the supplied specification with the measurement task.
What should be included when planning battery life?
Use the selected channel list, measurement and reporting intervals, operating conditions and network quality to define the battery plan. Confirm the calculation for the supplied temperature, humidity and light configuration.
The published T&H reference design states more than 10 years with 10-minute sampling and reporting every four hours under stated test conditions. Sampling and reporting intervals can be agreed for the project, and actual service life depends on the battery pack, selected channels, operating temperature and radio conditions. Match that reference to the final project configuration.
LET'S TALK ABOUT YOUR PROJECT
Your space.
Let’s plan the monitoring.
Tell us about the room, collection or operation you want to monitor. We’ll help match the measurement channels, installation and data connection to your project.
sales@hitelecom.cn ↗Start with the space and the purpose.
A room plan, display-case photo or monitoring procedure helps us understand the location. Add your temperature, humidity and light targets, reporting needs and platform requirements.