This is an Arduinoط¢آ Carbon Monoxide Sensor. It usesط¢آ MQ7 probe to detect Carbon Monoxide (CO) ط¢آ concentrations in the air from 20 to 2000ppm.
The sensitivity can be adjusted by the potentiometer. ط¢آ The output is proportional to the density of gas. You can use analog reading to read the data from this sensor.ط¢آ
To ease the difficulty of using this sensor, ط¢آ aط¢آ Gravityط¢آ Interface is adapted to allow plug&play. ط¢آ Theط¢آ Arduino IO expansion shieldط¢آ is the best match for this senor connecting to yourط¢آ Arduinoط¢آ microcontroller.