Model number: MQ7 CO gas sensor module 2 units.
Use: gas sensor.
Material: mix.
Type: gas sensor.
Departure: analog digital sensor.
Features
1. Signal output light indicator.
2. Analog and level signal output.
3. The valid TTL output signal is low. (When low signal output light can be connected directly to the microcontroller or the relay module).
4. The detection of carbon monoxide with a better sensitivity.
5. It has a long service life and reliable stability.
6. Rapid response recovery functions.