10 pcs Winsen GM-602B MEMS H2S Gas Sensor Hydrogen Sulfide Sensor

[shortdesc]Application:Portable and fixed type hydrogen sulfide monitor, and H2S detector.Feature:MEMS technology, Strong construction,Small sizes and low power consumption,High sensitivity to H2S gases,Fast response and resume,Simple drive circuit, Long lifespan[/shortdesc]Production 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.Feature: MEMS technology, Strong construction Small sizes and low power consumption High sensitivity to H2S gases Fast response and resume Simple drive circuit, Long lifespan Application:Portable and fixed type hydrogen sulfide monitor, and H2S detector.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