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Product Details:
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| Sensor Type: | Semiconductor | Standard Packaging: | Plastic, Metal Cover |
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| Target Gas: | Carbon Monoxide, Methane | Detection Range: | 10~500ppm Carbon Monoxide, 300~10000ppm Methane |
| Highlight: | Industrial use Gas Sensor |
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MQ-9B Dual Gas CO And CH4 Detection Sensors Industrial use
The sensitive material of MQ-9B gas sensor is SnO2, which has low conductivity in clean air. It detects carbon monoxide (1.5V) by cycling high and low temperatures. At high temperature (5.0V), it can detect CO and remove other gases adsorbed at low temperatures. As the concentration of CO and CH4 gases increases, the conductivity of the sensor increases. Users can convert the change in conductivity into the corresponding gas concentration output signal through a simple circuit.
Application:
Widely used in household CO gas leak alarms, industrial CO gas alarms and portable CO gas detectors.
| Loop voltage | ≤10V DC |
| Heater voltage | 5.0V±0.1V AC |
| Heating time | 60S±1S (high temperature) 90S±1S (low temperature) |
| Load resistance | Adjustable |
| Heater resistance | 29Ω±3Ω (room temperature) |
| Warm-up time | More than 48 hours |
Contact Person: Xu
Tel: 86+13352990255
