MQ-4 MQ4 Gas Sensor Module For Arduino DIY Electrical Circuitry & Parts
- Using high-quality dual-panel design, with power indicator and TTL signal output instructions ;
- The switching signal having a DO (TTL) output and analog output AO ;
- TTL output valid signal is low . ( Low-level signal when the output light can be directly connected to the microcontroller or relay module )
- The higher the voltage , the concentration of the analog output voltage is higher.
- For methane, natural gas has a good detection sensitivity.
- There are four screw holes for easy positioning ;
- Dimensions : 32 (L) * 20 (W) * 22 (H)
- Rapid response and recovery characteristics
