Carbon Monoxide Sensor - MQ-7

This is an easy - to - use Carbon Monoxide (CO) sensor perfect for detecting CO concentrations in the air. The MQ - 7 can sense CO - gas concentrations ranging from 20 to 2000ppm. It features high sensitivity and a rapid response time. The sensor outputs an analog resistance. Its drive circuit is straightforward: just power the heater coil with 5V, add a load resistance, and connect the output to an ADC. This sensor comes in a package similar to our MQ - 3 alcohol sensor and can be used with the provided breakout board. Documents include Hazardous Gas Monitor, Datasheet, and Wiring Example.

Using the MQ - 7 carbon monoxide sensor is a breeze. First, power the heater coil with 5V. Then, add a load resistance. After that, connect the output to an ADC. It can detect carbon monoxide in the air with a concentration between 20 and 2000ppm. When using it, make sure the power supply is stable to ensure accurate readings. Also, avoid exposing it to extreme temperatures or harsh environments. For maintenance, keep it clean and free from dust. Check the wiring regularly to ensure there are no loose connections. If you have any questions, refer to the datasheet or the hazardous gas monitor document.