... Main Technical ParameterMeasurement RangeCO: 0~10.0 10-2 (%) CO2: 0~20.0 10-2 (%) HC: 0~10000 10 ... NO: 0~40000 10 -6 (ppm)Response TimeCO,HC,CO2≤10s, NO,O2≤15sIndication ErrorCO: ±5%(relative error:0~ ... 10%) CO2: ±5%(relative error:0~20%)HC: ±5%(relative ... 1. Used to measure the concentration of HC,CO,CO2,O2,NO(4Q without NO)in the Automobile Exhaust ...