Gunson Hi-Gauge Compression Tester
Hi-Gauge Compression Tester
Hi-gauge is a tool for measuring and recording the pressure created by the piston in each cylinder. This information is used to diagnose faults in valves, pistons, piston rings, cylinder bores or head gaskets. Such tests are an excellent guide to general engine condition and can be used during routine engine servicing to give advance warning of developing problems or for fault diagnostics.