Hangzhou Zetian Technology Co., Ltd.

- Model VEM-100 - Vehicle Emission tester


Vehicle emission NOX analysis platform is a new developed product based on UV-DOAS platform, which is able to simultaneously measure two gas components (NO and NO2) in vehicle exhaust. It can be widely applied in fields of vehicle exhaust emission detection, road check & spot check of Environment Ministry and Transport Ministry, quick test on exhaust purification device, education & research unit, vehicle exhaust research, automobile manufacture industry, vehicle maintenance industry and etc. Compared with other detection methods (electrochemistry and NDIR), the adopted technology can realize simultaneous and direct measurement of NO and NO2 with advantages of fast response time, high accuracy, small volume, simple structure and no interference of background gas (like moisture). It supports MODBUS protocol and customization.

  • Based on UV gas analysis technology platform with years of research experience; self-developed core technology and algorithm; strong market competitiveness
  • Fast response speed, solve NO2 absorption problem, T90≤ 3.5s (NO2 index),T95≤ 4.5s
  • Without interference of substances like H2O, dust, HC and CO2
  • Measure NO and NO2 simultaneously and directly, solve the problem that conversion efficiency of conventional converter will gradually decrease over time

Spot check of Transport Ministry

Monitoring station of Environment Ministry

Vehicle maintenance 4S store

Automobile manufacture industry--Offline inspection of newly produced automobile

Automobile manufacture industry--Pre-delivery inspection of engine