MQ-9 MQ9 CARBON MONOXIDE GAS SENSOR MODULE

MQ-9 MQ9 Carbon Monoxide Gas Alarm Combustible Sensor Module For Arduino
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nFeature:
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nSuitable for home or factory gas leakage monitoring devices.
nHave better sensitivity to CARBON MONOXIDE, METHANE, LIQUEFIED PETROLEUM GAS.
nHigh quality dual-panel design, with power indicator and TTL signal output instructions.
nDO switching signal (TTL) output and AO analog signal output.
nTTL output valid signal is low. (When the output low signal is on, it can be directly connected micro-controller or relay module.)
nAnalog output voltage: the higher concentration, the higher voltage.
nFour screw holes, easy positioning.
nLong life and stability, quick response and resume.
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nSpecification:
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• Input voltage: DC 5±0.2V

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• Power: 150mA

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• DO output: TTL digital 0 and 1 (0.1 and 5V)

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• AO output: 0.1-0.3V (relatively clean), the highest concentration voltage is about 4V.

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• Dimensions: 32(L) * 20(W) * 22(H) mm

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nWire connecting method:
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• VCC – positive pole (5V)

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• GND – negative pole

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• DO – TTL switch signal output

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• AO – analog signal output

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nPackage included:
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• 1 x MQ-9 Sensor Module

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