GAS SENSOR MODULE KIT 9 IN 1
This gas sensor module kit 9-in-1 is perfect to test for the presence of a large variety of gasses. All the modules are compatible with Arduino.
- VCC: positive power supply (5V)
- GND: power supply is negative
- DO: TTL switching signal output
- AO: analog signal output
More detailed information & instructions on MQ Gas Sensors is available at the Arduino Playground: https://playground.arduino.cc/Main/MQGasSensors
- 9-in-1 sensor module kit