1.Measure the concentration of HC, CO, CO2, O2, NO. 2.Built-in printer 3.Full english menu operation 4.Auto-zeroing SV-5Q automobile exhaust emission Analyzer SV-5Q automobile exhaust emission Analyzer, In accordance with non-light-disguising infrared absorption method.The main technical parameters1. Environmental temperature Temperature 5-40 humidity: 95% Air pressure:70.0-106kPa Power: AC 220V± ...