Which gases can be detected?

Over 100 gases including CO, H₂S, NH₃, O₃, CH₄, Cl₂, VOCs and more. Measuring range and principle (electrochemical, NDIR or PID) are matched to the target gas.

How do I order a custom gas sensor?

Tell Hitelecom the target gas, expected range, installation style (fixed or ducted) and site conditions; engineering confirms the configuration and lead time under the OEM/ODM program.

Can the enclosure handle outdoor installation?

Yes. Fixed and ducted enclosures cover most sites, and IP68 protection is available as a customization for permanently exposed locations.

How does it report alarms?

Wirelessly over 4G or NB-IoT via MQTT to Hitelecom Cloud or a private platform, with remotely configured alarm thresholds.

H Series · Custom Gas Sensor

100+ Gases | Fixed or Ducted | OEM/ODM

Pick the gas — Hitelecom builds the terminal around it. The H Series custom gas sensor supports 100+ gases including CO, H₂S, NH₃, O₃ and CH₄, with electrochemical, NDIR or PID principles, fixed or ducted enclosures, 4G or NB-IoT uplink; battery life depends on the sensing principle and reporting frequency (designed for more than 10 years at a one-hour interval in typical configurations).

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Key Features

100+ Gases | Fixed or Ducted | OEM/ODM

Electrochemical / NDIR / PID Principles
IP68-Rated Enclosure, Customizable
100+ Gases: CO, H₂S, NH₃, O₃, CH₄, and More
Supports NFC activation and local device configuration.
Energy-Efficient Tech for Long-Lasting Performance
Wireless options: 4G LTE, NB-IoT, and LoRa.
Remote Gas Monitoring: Access Data Anywhere
Intelligent Alerts: Automatic alerts when configured thresholds are exceeded.

Technical Specifications

Custom gas terminals combine micro-power processors with sensing principles matched to the target gas. Range, accuracy, and battery life depend on the selected gas, principle, and reporting interval — confirm per configuration.

Specifications

H Series · Custom Gas Sensor — Technical Specifications
Product Models	H200/H300/H500
Target Gases	100+ Gases Customizable
Measuring Range	Per Gas (Customized)
Protocol	MQTT
Sensing Principle	Electrochemical / NDIR / PID
Frequency Bands	LTE-TDD: B34/B38/B39/B40/B41; LTE-FDD: B1/B3/B5/B8
Battery Life	Designed for more than 10 years of battery life at a one-hour reporting interval under the specified test conditions. Actual battery life varies by model, sensing configuration, network coverage, retransmissions, operating temperature, sampling rate, and reporting interval.
Installation	Fixed · Ducted

Application Scenarios

Coal mine

Chemical Plant

Water Plant

Smart industry

Manhole Cover

Office environment

Applications

This product supports the following monitoring applications:

Coal mines

CH₄ and CO monitoring underground where wired gas systems are hard to extend.
Chemical plants

Point monitoring of process-specific gases along production and storage areas.
Water and wastewater plants

H₂S detection in wet wells, screens and sludge rooms.
Cold storage and refrigeration

NH₃ leak detection for ammonia refrigeration plants.
Manholes and confined spaces

Pre-entry and continuous gas checks in municipal confined spaces.
Semiconductor and labs

Specialty gas leak monitoring tailored to the exact gas in use.

Frequently Asked Questions

Which gases can be detected?: Over 100 gases including CO, H₂S, NH₃, O₃, CH₄, Cl₂, VOCs and more. Measuring range and principle (electrochemical, NDIR or PID) are matched to the target gas.
How do I order a custom gas sensor?: Tell Hitelecom the target gas, expected range, installation style (fixed or ducted) and site conditions; engineering confirms the configuration and lead time under the OEM/ODM program.
Can the enclosure handle outdoor installation?: Yes. Fixed and ducted enclosures cover most sites, and IP68 protection is available as a customization for permanently exposed locations.
How does it report alarms?: Wirelessly over 4G or NB-IoT via MQTT to Hitelecom Cloud or a private platform, with remotely configured alarm thresholds.