Robomart MQ - 7 Carbon Monoxide Gas Sensor

Perfect for the ambient air quality monitoring projects, this MQ - 7 Carbon Monoxide Gas Sensor by Robomart senses carbon monoxide concentration in the air. Suitable for both indoor and outdoor use, this analog sensor has high sensitivity and fast response time. Detection Range of 20 to 2000 ppm This highly sensitive sensor can detect the carbon monoxide concentrations in the range of 20 to 2000 ppm. Simple Driver Circuit The simple driver circuit of this sensor consists of a 5 volts power supply and load resistance. Feed this circuit’s output to an analog-to-digital converter (ADC) to digitize it for further processing by a microcontroller. Sensitive to Various Parameters MQ-7 is highly sensitive to LPG, iso-butane and propane. It also exhibits small sensitivity to smoke and alcohol. Thus, it can be used to detect these parameters.