Keyestudio MQ-7 Carbon Monoxide Gas Sensor For Arduino

SKU: KSR1B1S6Brand: Keyestudio

The Keyestudio MQ-7 is a carbon monoxide (CO) gas sensor module specially designed to detect CO gas concentration in the air. It is widely used in safety, monitoring, and educational Arduino projects where carbon monoxide detection is required.

Variant
Rs. 600Rs. 625
QTY


The MQ-7 sensor is based on a tin dioxide (SnO₂) sensitive layer whose resistance changes when exposed to carbon monoxide gas. Unlike many other MQ sensors, the MQ-7 requires alternating heater voltages to accurately measure CO. The module provides an analog output proportional to gas concentration and a digital output that can be adjusted using an onboard potentiometer.