MQ-9 Carbon Monoxide & Flammable Gas Sensor
High sensitivity to carbon monoxide and CH4，LPG. Stable and long life sensor. The sensor is composed of micro AL2O3 ceramic tube, Tin Dioxide (SnO2) sensitive layer, measuring electrode and heater are fixed into a crust made by plastic and stainless steel net.
Features:
- Good sensitivity to CO/Combustible gas
- High sensitivity to Methane, Propane and CO
- Long life and low cost
- Simple drive circuit
Specifications:
- Loop Voltage Vc ≤10V DC
- Heater Voltage 5.0V±0.2V ACorDC（High）
1.5V±0.1V ACorDC（Low） - Heater Time TL 60±1S（High）90±1S（Low）
- Load Resistance RL Adjustable
- Heater Resistance RH 31Ω±3Ω（Room Tem.）
- Heater consumption PH ≤350mW
- Sensing Resistance Rs 2KΩ-20KΩ(in 100ppm CO )
- Slope α ≤0.6(R300ppm/R100ppm CO)
Application:
- Domestic gas leakage detector
- Industrial gas detector
- Portable gas detector
WARNING
