Compression Tester Kit Tool Type Compression Tester Kit Testing Application Compression Testing Number of Pieces 10 Features 2 1/2 in Digital Gauge Features a Backlit LCD and Protective Outer Boot Adapters Work on Both Flat and Tapered Seat Plugs Corrosion Resistant Nickel Plated Finish Displays in bar and kg/c Measurement Range of 3-300 psi and 0-2100 kPa