This is MQ-9 Carbon Monoxide, Methane, and LPG Gas Sensor Module can be used to sense Carbon Monoxide and Methane Gas. Sensitive material of the MQ9 gas sensor is SnO2, which with lower conductivity in clean air.
Features:
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Using high-quality dual-panel design, with power indicator and TTL signal output instructions.
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The switching signal having a DO (TTL) output and analog output AO.
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TTL output valid signal is low. ( Low-level signal when the output light can be directly connected to the microcontroller or relay module )
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Analog output voltage with the higher concentration of higher voltage
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There are four screw holes for easy positioning.
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Has a long life and reliable stability
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Rapid response and recovery characteristic
Input voltage : DC5V Power consumption ( current ): 150mA
DO output : TTL digital 0 and 1 ( 0.1 and 5V)
AO output :0.1-0 .3 V ( relative to pollution ),the maximum concentration of a voltage of about 4V
Special note: After the sensor is powered, needs to warm up around 20S,measured data was stable,heat sensor is a normal phenomenon,because the internal heating wire,if hot is not normal .
DO output : TTL digital 0 and 1 ( 0.1 and 5V)
AO output :0.1-0 .3 V ( relative to pollution ),the maximum concentration of a voltage of about 4V
Special note: After the sensor is powered, needs to warm up around 20S,measured data was stable,heat sensor is a normal phenomenon,because the internal heating wire,if hot is not normal .
Wiring:
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VCC: positive power supply (5V)
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GND: power supply is negative
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DO: TTL switching signal output
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AO: analog signal output
NOTE:
After the sensor is powered, need to warm about 20S, measured data becomes stable, heat sensor is normal
Additional information
| Brand Name | WAVGAT |
|---|---|
| Origin | CN(Origin) |
| Usage | Gas Sensor |
| Type | Gas Sensor |
| Theory | Hall Sensor |
| is_customized | Yes |
| Material | Polymer |
| Output | Analog Sensor |
| Model Number | MQ Module |
Vendor Information
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