Professional compression tester set for checking the condition of both direct and in-direct injection diesel engine fitted to most cars and small boats. Specially designed to diagnose compression loss caused by worn valves and valve seats, valve guides, piston rings, cylinder head or gasket seal. Feature dual-scale gauge (0-1000psi/ 0-70 bar), pressure relief valve, 500mm flexible hose with quick-release connection couplings for precise and accurate measurements. Suitable for BMW, Dacia, Fiat, Ford, Land Rover, DAF, Mazda, Mercedes-Benz, Mitsubishi, Nissan, PSA (Citroën, Peugeot), Renault, Toyota, Vauxhall/ Opel, VAG (Seat, Volkswagen) and Volvo. Set includes 90° elbow, clamp plate, dummy injectors, M10, M12, M14 glow plug adaptors and M20, M24 injector adaptors. Supplied in carry case.