Neptune Equipment manufactures CO gas analyser and engine tester unit, a diagnostic tool for automobile engines. It is a rugged versatile combination of a gas analyser and dwell tach meter which provides all the information instantly required while tuning an engine. The bright red digital LED display shows all the required reading at the touch of a button-engine speed [in PM], dwell [in degrees or percentage], volts and emission CO in percentage. The equipment works on a 12 volt DC battery and is one of the most sophisticated compact unit available for complete engine tuning applications.
