GM-602B MEMS H2S Gas Sensor

For portable and fixed type hydrogen sulfide monitor, and H2S detector

Applications :

*Portable and fixed type hydrogen sulfide monitor
*Portable and fixed type hydrogen sulfide detector

Product Advantages:
  • *MEMS technology, Strong construction
  • *High sensitivity to H2S gases
  • *Small sizes and low power consumption
  • *Fast response and resume
  • *Simple drive circuit, Long lifespan
Product Description:

MEMS H2S gas sensor is using MEMS micro-fabrication hot plate on a Si substrate base, gas-sensitive materials used in the clean air with low conductivity metal oxide semiconductor material. When the sensor exposed to gas atmosphere, the conductivity is changing as the detected gas concentration in the air. The higher the concentration of the gas, the higher the conductivity. Use simple circuit can convert the change of conductivity of the gas concentration corresponding to the output signal.

Technical Parameters:
Part No. GM-602B
Sensor Type MEMS
Standard Encapsulation Ceramic
Detection Gas H2S & Benzene etc.
Detection Range 0.5~50ppm (H2S)
Standard Circuit Conditions Loop Voltage Vc ≤24V DC
Heater Voltage VH 1.9V±0.1V AC or DC
Load Resistance RL Adjustable
Sensor character under standard test conditions Heater Resistance RH 80Ω±20Ω(room temperature)
Heater consumption PH ≤40mW
sensitive materials resistance RS 1KΩ~30KΩ(in 50ppm H2S )
Sensitivity S R0(in air)/Rs(in 50ppm H2S)≥3
Concentration Slope α ≤0.6(R200ppm/R50ppmH2S )
Standard test conditions Temp. Humidity 20℃±2℃;55%±5%RH
Standard test circuit VH:1.9V±0.1V;VC :5.0V±0.1V
The Latest Manual

Please send us your questions or inquiries via the form below and we will get back to you within 24 hours.

Cannot find what you are looking for?

Write an email to us to consult about your special project, we will assist you to realize your dream product to reality.

Home Tel Mail Inquiry