IoT product and technology solution provider

Industrial-grade RS485 Hydrogen(H2) Gas Transmitter

Our RS485 hydrogen transmitter integrates high-sensitivity gas detection with stable Modbus RTU communication. It supports remote monitoring and PLC system integration, features explosion-proof design and temperature compensation, and delivers accurate H₂ concentration data for industrial sites, battery rooms, and fuel cell systems. Reliable, easy to calibrate, ideal for safety-critical applications.
  • Model No.:

    LW308D-H2(RS485)
  • Use:

    hydrogen monitoring
  • Power Supply:

    10~30VDC
  • LoRaWAN Mode:

    OTAA Class A/C(Default: Class C)
  • Certificates:

    CE,ROHS
  • Customized Support:

    OEM, ODM
  • Warranty:

    1 Year
  • Product Detail

ZONEWU RS485 Hydrogen(H2) Transmitter



ZONEWU RS485 Hydrogen Transmitter Key Applications & Use Cases
1.Industrial Hydrogen Production Workshop Monitoring: Ideal for hydrogen preparation units, pipeline junctions and other areas. Supports 10~30V DC power supply, with a measurement range covering 0-1000ppm/0-40000ppm; the RS485 output signal can be connected to the workshop monitoring system. It tolerates the working environment of -20~50℃, 15~90%RH (no condensation), and the ±5%FS measurement accuracy can capture leakage risks in time to ensure production compliance.
2.Hydrogen Energy Storage Facility Safety Control: Suitable for hydrogen storage tank areas, storage cabinets and other scenarios. It has a low-power design of 0.9W (RS485 mode), with a measurement resolution of 1ppm to feed back concentration data in real time; it also supports wide temperature storage environment compatibility of -40~+80℃, and the signal stability of ≤2% signal value/month reduces the calibration frequency during long-term operation and cuts maintenance costs.
3.Laboratory Hydrogen Application Environment Monitoring: Applied around hydrogen-related experimental equipment in laboratories. It has a response time of ≤70s (1000ppm) to quickly detect concentration changes; it also has a temperature auxiliary monitoring accuracy of ±0.5℃ (25℃), and its anti-interference performance adapts to the complex electromagnetic environment of the laboratory. CE/ROHS compliance meets laboratory safety standards.
4.Hydrogen Leakage Early Warning in Chemical Warehousing Areas: Adapted to warehousing areas where chemicals are mixed and stored. Supports multiple signal outputs such as 4-20mA/0-5V/0-10V, which is compatible with different warehouse monitoring terminals; integrated humidity compensation function maintains data accuracy in 0~100%RH humidity environment. Wireless remote data transmission (combined with supporting modules) reduces on-site wiring and improves the deployment flexibility of the warehousing area.



PH3 Sensor Specification:


Power Supply

10~30V DC

Output signal

RS485/4-20mA/0-5V/0-10V

Power consumption

0.9W(RS485),0.12W(Analog)

Measuring range

0-1000ppm/0-40000ppm

Accuracy

±5%FS

Resolution

1ppm

Temperature range

-40℃~+80℃

Humidity range

0~100%RH

Temperature and 

humidity accuracy

±0.5℃(25℃), ±3%RH(60%RH, 25℃)

 Working environment

-20~50℃, 15~90%RH, no condensation

Pressure range

90~110kPa

Stability

≤2% signal value/month

Response time

1000ppm:≤70s

4000ppm:≤60s

Preheating time

≥5min

Zero drift

1000ppm:≤±10ppm

4000ppm:≤±20ppm

Repeatability

≤2%

Service life

≥24 months





Packaging:

Single gross weight: 0.600 KG

Single package size: 23X20X5 cm

 



Application: 


The High precision PH3 gas sensor also widely used for gas monitoring of Chemical production, Ward monitoring, Vegetable greenhouse, Livestock and poultry farms, Tunnel monitoring, Cold chain logistics vehicle, Cold storage monitoring, Biosafety laboratory.

 

Certifications


We are best gas sensor manufacturer and exporter in China with more than 10 years. Our PH3 gas sensor products are certified  with of CE, ROHS.

 

 

Production Process:


 


Why choose us:


1. Strong R & D: 30+ Senior experts and highly educated personnel formed a R & D team, heavy investment, master a number of core technologies and patents.
2. Professional and effective solutions: for smart environmental protection, agriculture and other fields, to provide customized compound networking solutions.
3. Full range of products: covering the whole industry chain products from data collection to platform services to meet diverse needs.
4. Excellent quality: we have perfect quality control system, strictly quality control each production link, low defective rate. 
5. Good service: 7×24 hours fast response, Professional pre-sale, sale, after-sales team support.

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