Features:
   Used to measure vehicle emissions of HC, CO, CO2, O2 and NOx gas concentration, automatic calculation shows that air fuel ratio λ, can be the engine combustion performance and emissions of pollution in a comprehensive test. Use of advanced foreign technology, import the key components assembled. With a high brightness digital display, automatic zero, linear automatic data processing, auto-alarm when the gas line blocking, fault diagnosis where the unit automatically and print testing date, time functions, with built-in printer (or the analog output interface or RS -232A digital serial communication interface), can be freely idling and dual idling measure, Multi-mode measurement，with convenient operation, accurate measurement data, work stable and reliable characteristics.
 
Specification:
Measuring range:HC: 0~10000×10-6(ppm)vol,CO: 0~10×10-2(%)vol )
              CO2: 0~20×10-2(%)vol, O2: 0~25×10-2(%)vol
              NOx: 0~5000×10-6(ppm)vol,
              Lambda: 0.50~3.00    COcor:0~10×10-2(%)vol
Indicating error:HC±12×10-6(ppm)vol ( absolute error ) or±5% ( relative error )
                          CO±0.06×10-2(%)vol ( absolute error ) or±5% ( relative error )
                          CO2±0.5×10-2(%)vol ( absolute error ) or±5% ( relative error )
                          O2±0.1×10-2(%)vol ( absolute error ) or±5% ( relative error )
                          NOx±25×10-6 (ppm)vol ( absolute error ) or±4% ( relative error )
Stability:moment drift≤±3%
Repeatability ≤±2%
Resolution: C: 1×10-6（ppm）vol   CO: 0.01×10-2(%)vol   CO2: 0.1×10-2(%)vol
              O2: 0.01×10-2(%)vol    NOx:1×10-6（ppm）vol   λ:0.01