- Engine pressure loss tester - for quick and easy diagnosis of combustion chamber leaks, such as leaks in inlet and outlet valves, head gaskets and piston rings - shows the pressure loss in percent and enables an acoustic test - suitable for petrol engines with spark plug threads M12x1.25 and M14x1.5 - contains the following components: - Adapter M12 x 1.25, metric - M14 x 1.5 adapter, metric - Hose extension with quick coupling - Gauge unit with compressed air regulator, leakage and pressure gauge - hose adapter - completely sorted in a sturdy plastic case