2EM Pro Differential Compression Tester

Sold in a solid hard plastic case, this 2EM compression tester is the ATS answer to damaged gauges in between tests. The unit also combines a compression tester with the popular Master Orifice so that you can check engine leakdown rate alongside a calibrated standard gauge to quickly determine whether leakage is within manufacturer limits.Complete testing tool includes:Heavy duty regulatorHeavy duty gauges18mm spark plug adapter24" pressure hoseAll connections quick disconnect18mm plug adapterHard caseInstructionsAdditional InformationTech Talk: Powerplant Compression