Comprehensive Compression Testing: Suitable for most petrol cars and light commercial vehicles, diagnosing issues with valves, piston rings, gaskets, and cylinder heads. Durable Ø57mm Gauge: Equipped with a heavy rubber bumper for durability, a 150mm hose, and M14/M18 fittings, ensuring reliability. Accurate Readings: Scale reads from 0-20 bar (0-300 psi) for precise compression measurements. Versatile Adapters & Thread Chasers: Includes 5 adapters and 2 thread chasers, covering M10, M12, M14, and M18 plug thread sizes for universal application. Ideal for professional mechanics and DIY enthusiasts, this tester ensures efficient and accurate petrol engine diagnostics.