Online /portable infrared gas component thermal value instrument adopts international advanced  NDIR non-dispersed infrared technology, TCD thermal conductance technology of MEMS, it is mainly used in measuring the thermal value of gas, and biogas and the volume concentration of  CO, CO₂, CH₄, H₂, O₂, C_nH_{m .}

Flue gas analyzer include online/portable flue gas analyzer, comprehensive portable flue gas analyzer and portable combustion efficiency analyzer respectively adopt the patent technology microflow infrared gas measurement technique, international advanced NDIR non-dispersed infrared technology and electrochemical techniques.

Biogas analyzer include online, portable, handheld and wall mounted models adopt international advanced NDIR non-dispersed infrared technology and ECD long life electrochemical techniques. It is used to measure the volume concentration of CH₄, CO₂, H₂S, O₂ in biogas with high precision, smart structure, easy operation. It is extensively applied in landfill, sewage treatment, anaerobic fermentation, CDM measurement and other fields.

Commercial and industrial use/ for biogas only BF-3000 Ultrasonic Biogas Flowmeter is developed for the measurement of biogas output from anaerobic digester. It is designed to withstand the wet and corrosive conditions. The built-in temperature and pressure sensors enable to make compensation and reach high accuracy.

Gasboard—5020 emission gas analyzer can be used for measurement of the concentration of automobile emission gas CO ,CO₂ ,HC ,O₂ and NO (optional). It is based on the pulsable infrared source and single source two beams non-dispersion infrared (NDIR) method, this analyzer is designed with portable and smaller physical dimensions.

Alarm & detector series includes infrared methane/carbon dioxide alarm, infrared methane/carbon dioxide transmitter,  toxic gas alarm/detector, infrared combustible gas detector. These products adopt international advanced NDIR non-dispersed infrared technique, and are mainly applied in leakage detection and alarm of CH₄, CO₂, CO, H₂S and other gases.