N4 infrared gas sensor is an intelligent micro-gas sensor designed based on the principle of NDIR.
It is used to measure the gas by the absorption characteristics of specific infrared spectra. The
sensor is not dependent on oxygen and can not be poisoning like the catalytic sensor, The sensor has long life, high accuracy and stable performance. The sensor has both analog and digital signal output interfaces, which can output directly the gas concentration value signal with linearized treatment and temperature compensation, and is convenient to use.