The Grove – Gas Sensor(MQ2) module is useful for gas leakage detecting(in home and industry). It can detect H2, LPG, CH4, CO, Alcohol, Smoke, Propane. Based on its fast response time. Measurements can be taken as soon as possible. Also the sensitivity can be adjusted by the potentiometer.
2.Chip: LM393, ZYMQ-2 gas sensors
3.Working voltage: DC 5V
1.with a signal output instruction.
2.dual signal output (analog output, and TTL level output)
4.0~5V analog output voltage, the higher the concentration the higher the voltage.
5.the gas, natural gas, city gas, smoke better sensitivity.
6.with a long service life and reliable stability
7.rapid response and recovery characteristics
1x MQ2 Sensor for Arduino/Raspberry PI