- Using high-quality dual-panel design, with power indicator and TTL signal output instructions.
- With a DO switch signal (TTL) output and AO analog signal output.
- TTL output valid signal is low. (When the output low signal light can be directly connected microcontroller or relay module).
- The analog output voltage, the higher the concentration the higher the voltage.
- Methane, natural gas has better detection sensitivity.
- There are four screw holes for easy positioning.
- Rapid response and recovery characteristics.
MQ 4 Gas Methane Sensor Module
MQ 4 Gas Methane Sensor Module