The module is specially developed for high-quality NDIR gas analyzers. Modular design is adopted. We can also customize the functions of measuring CO, CO₂ SO₂, NO, CH₄, HC, Alcohol Gas and other gases according to users’ requirements. The measuring range is from ppm to % level. This module has a smaller size and is convenient to be integrated into various gas analyzers.

The module adopts the principle of non-dispersive infrared absorption and consists of a wide-spectrum infrared radiation light source, a gas chamber, a detector and a signal control and processing circuit. It analyzes the gas concentration by detecting the light attenuation before and after gas absorption. The module adopts a high-performance wide-spectrum infrared radiation light source and a new type of multi-reflection infrared gas chamber designed by Laoying, achieving both high stability and low detection limit. The optical path of the gas chamber can be customized, and the chamber wall does not affect the optical process, so the optical path is more stable and the measurement results are more reliable, without frequent cleaning of the gas chamber and other maintenance.