- 8 PC. Gasoline Compression Tester Kit - Wide Application: Ideal for petrol engines in lawn mowers, motorbikes, cars, trucks, and more. - Effective Diagnostics: Quickly identifies issues with pistons, rings, and valves. - Dual-Scale Gauge: Features a gauge with dual color scales showing 0-300 PSI and 0-20 kg/cm² for clear, precise readings. - Convenient Pressure Release: Includes an easy-to-use pressure release button on the side of the tester. - Durable Construction: Equipped with brass corrosion-resistant fittings for long-lasting performance.