50pcs MQ-2B Sensor Gas Sensor CO CO2 Smoke Detecting MQ Sensor DIY for Safety Detection System

Overview:

- The gas sensing material used in the MQ-2B gas sensor is tin dioxide (SnO2) with lower conductivity in clean. When there is a flammable gas in the environment where the sensor is located, the conductivity of the sensor increases as the concentration of flammable gas in the increases. The change in conductivity can be converted to an output signal corresponding to the gas concentration using a simple circuit. 

- The MQ-2B gas sensor is highly sensitive to propane and smoke and  for the detection of natural gas and other flammable vapors. This  sensor detects multiple flammable gases and a low-cost sensor for a wide of applications.

Characteristics:

This product has good sensitivity to propane, smoke, etc. in a wide concentration , and has the advantages of long life, low cost, and simple driving circuit.

Application:

Widely used in household gas leak alarms, industrial combustible gas alarms and portable gas detection instruments.