... HC,CO,CO2, O2, in the Automobile Exhaust Gas. SV-5QAuto Exhaust Gas Analyzer Main Technical Parameter:Measurement RangeCO: 0~10.0 10 ... ,CO2,O2,NO(4Q without NO)in the Automobile Exhaust Gas.2. Two kinds of test function: General and Two-speed ... 500 groups of data, built-in printer11. Measurable with liquefied gas (LG), liquefied natural gas (LNG) and gasoline and other alternative fuel vehicles.