MQ-7 Carbon Monoxide Gas

MQ-7 gas sensor is sensitive material used in clean air, low conductivity tin dioxide (SnO2). Detection method using low temperature cycling (1.5V heating) detect carbon monoxide, airborne sensor conductivity increases with the increase of the concentration of carbon monoxide gas, high temperature (5.0V heating) cleaning stray gas adsorption at low temperature. Using a simple circuit can be changes in the conductivity, concentration of the gas is converted to the corresponding output signal. MQ-7 gas sensor with high sensitivity for carbon monoxide, this sensor can detect a variety of gases containing carbon monoxide, is a low-cost sensors for a variety of applications.

Carbon Monoxide sensor for use in industrial or mining applications. This unit offers excellent long life performance with stable sensing characteristics.

They are used in gas detecting equipment for carbon monoxide(CO) in family and industry or car.

1. Using high-quality dual-panel design, with power indicator and TTL signal output instructions.
2. With a DO switch signal (TTL) output and AO analog signal output.
3. TTL output valid signal is low. (When the output low signal light can be directly connected microcontroller or relay module).
4. The analog output voltage, the higher the concentration the higher the voltage.
5. The carbon monoxide detection with better sensitivity.
6. There are four screw holes for easy positioning.
7. With a long service life and reliable stability.
8. Rapid response and recovery characteristics.

*Image shown is a representation only.