The Model 2EM Differential Cylinder Pressure Tester combines the features of our popular 2E tester and a Master Orifice into one tool. Now you can conveniently check your engine's leak down rate against its built-in calibrated standard to instantly determine if your engine's cylinder leakage is within the manufacturer's limits. Specifications: Orifice size is .040". precision gauges matched to within +/- 2%. Includes 18MM Spark Plug Adapter, 24" pressure hose, and complete instructions. Protective form-fitted hard case included. Factory calibrated. Letter of certification available upon request. LIMITED LIFETIME WARRANTY
4 lbs (2Kg) shipping weight.