This is a simple-to-use  wide detecting scope gas sensor, They are used in gas leakage detecting equipments in family and industry, are suitable for detecting of LPG, i-butane, propane, methane ,alcohol, Hydrogen, smoke.

This sensor has a high sensitivity and fast response time. The sensor's output is an analog resistance. The drive circuit is very simple; all you need to do is power the heater coil with 5V, add a load resistance, and connect the output to an ADC.

Detecting concentration scope：

LPG and propane     200ppm-5000ppm

butane                         300ppm-5000ppm

methane                     5000ppm-20000ppm 

H2                                300ppm-5000ppm

Alcohol                        100ppm-2000ppm

For more information of this product, please visit theWiki PAGE

Document :

Wiring Example