... to measure the concentration of HC,CO,CO2,O2,NOx SV-5Q automobile exhaust gas analyzerFunctional feature:In accordance with non-light ... Engine’s speed and Lubricant’s Temperature while measuring tail gas, then store and print the results.Besides detecting functions, its ... size, light weight, storage of 500 groups’ data of exhaust gas measurement. Particularly it is suitable for check along the road ...