This is a simple-to-use Carbon Monoxide (CO) sensor, suitable for sensing CO concentrations in the air. The MQ-7 can detect CO-gas concentrations anywhere from 20 to 2000ppm.
- Size:32mm X22mm X27mm
- IC:LM393.MQ-7 Sensor
- Work voltage:DC5V
- Analog + TTL output
- TTL output signal is low effective
- 0 ~ 5V analog output voltage, the higher the voltage the higher the concentration