H Series · Explosion-Proof Temperature and Pressure Sensor
Reliability | Industrial | Low Power
The Hitelecom H Series 2-in-1 transmitter combines temperature and pressure monitoring in one device designed for environments where flammable gas or dust may be present. Pressure ranges cover 0–1 MPa to 20 MPa at ±0.5% FS, temperature spans -200°C to 800°C, and data reports over 4G or NB-IoT. The applicable explosion-proof certificate must be confirmed for the target market and zone before ordering.
Key Features
Reliability | Industrial | Low Power
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Accuracy: ±0.5°C (Customizable to ±0.1°C) -
IP68-Rated Enclosure -
±0.5% FS (High-Precision Customization) -
Supports NFC activation and local device configuration. -
Supports remote OTA firmware updates. -
Wireless options: 4G LTE, NB-IoT, and LoRa. -
Remote Monitoring: Access Data Anywhere -
Smart Alerts: Automatic alerts when configured thresholds are exceeded.
Technical Specifications
Integrated communication and sensing technologies with embedded energy-saving algorithms give the transmitter an extended service life and high measurement stability, supporting the reliability of the wider monitoring system.
| Product Models | H200/H300/H500 |
|---|---|
| Measuring Range | 0–1, 1.6, 3.5, 7, 10, or 20 MPa |
| Pressure Accuracy | ±0.5%FS |
| Measured Temperature | -200°C to +800°C |
| Temperature Accuracy | ±0.5°C (Customizable to ±0.1°C) |
| Protocol | MQTT |
| Frequency Bands | LTE-TDD: B34/B38/B39/B40/B41; LTE-FDD: B1/B3/B5/B8 |
| Installation | Ear mount, pole clamp, or slot mounting (varies by configuration) |
| Hazardous-Area Certification | Certificate and marking confirmed per target market and zone — request before ordering |
| Operating Temperature | -40°C to +125°C |
| Storage Temperature | -40°C to +125°C |
Application Scenarios
Petrochemicals
Mining
Chemical Plant
Applications
This product supports the following monitoring applications:
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Petrochemical plants
One device watches both process temperature and pressure in hazardous areas.
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Oil and gas extraction
Wellhead and gathering-line monitoring without cabling in explosive atmospheres.
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Mining operations
Temperature and pressure trending in gas-risk underground areas.
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Chemical storage parks
Dual-parameter monitoring of storage and transfer equipment.
Frequently Asked Questions
- Why a 2-in-1 temperature and pressure transmitter?
- One device combines two measurements in a single instrument, which may reduce installation points, cabling, and maintenance in hazardous areas while keeping both variables on the same reporting schedule.
- What are the measuring ranges?
- Pressure: 0-1 MPa, 1.6, 3.5, 7, 10 or 20 MPa at ±0.5% FS. Temperature: -200°C to 800°C at ±0.5°C, customizable to ±0.1°C.
- Is it certified for explosive atmospheres?
- The device is designed for atmospheres where flammable gas or dust may be present. Suitability depends on the certified configuration required for the target market, zone, gas or dust group, and temperature class — request the applicable certificate from Hitelecom before specifying the product.
- How does it transmit data?
- Over 4G or NB-IoT with MQTT uplink to Hitelecom Cloud or private deployment, with threshold alarms on both channels.
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