Sensor, Detection of Combustible Gases
This device is a sensor/monitor for detecting combustible gases such as methane, propane, and butane.
The sensing element of Figaro gas sensors is a tin dioxide (SnO2) semiconductor which has low conductivity in clean air. In the presence of a detectable gas, the sensor's conductivity increases depending on the gas concentration in the air. A simple electrical circuit can convert the change in conductivity to an output signal which corresponds to the gas concentration.
It is designed to operate with a stabilized 5V heater supply and a circuit voltage not exceeding 24V.
Measuring range: 500-10,000ppm, Sensitivity (resistance ratio): 0.55-0.65