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MQ-9 Gas Sensor Module
High sensitivity to Carbon Monoxide, Methane, and LPG
- Input voltage: DC 5V
- Power: 150mA
- DO output: TTL digital 0 and 1 (0.1 and 5V)
- AO output: 0.1-0.3V (relatively clean), the highest concentration voltage is about 4V
Top Features:
- Home or factory gas leakage monitoring
- High sensitivity to CO, Methane, and LPG
- Dual-panel design with power indicator
- DO/TTL signal output and AO analog signal output
The MQ-9 gas sensor module is equipped with a sensitive SnO2 material that detects gases through temperature cycling. It is ideal for applications in domestic gas leakage detectors, industrial gas detectors, and portable gas detectors.
Wire Connecting Method of MQ9 Gas Sensor Module:
VCC - positive pole (5V)
GND - negative pole
DO - TTL switch signal output
AO - analog signal output
* Images are for illustration only; actual product may vary.