Description:    This is a high quality TU-21 cylinder leak detector, including double gauge system, 2-1/2" input pressure gauge, snap-on quick connect male connector, gauge scale 0-100PSI, 12mm, 14mm spark plug adapters, air regulator and carry case        Features:    Designed to detect a variety of common engine faults such as worn piston rings, cylinder head cracks, worn valves and blown head gaskets.    It checks the amount of leakage in an engine cylinder and helps determine the source.    Designed to check the amount of leakage in 4-stroke engines.    Deal for testing trucks and car models where clearance is minimal.    Fit for all local and imported cars and trucks.    Suitable for use on any petrol engine with 12mm or 14mm spark plugs to test the leakage of the cylinder.    Judge the leakage according to comparing the normal cylinder pressure of the engine with the measured pressure during the test.    3"(75mm) diameter gauge with dual gauge system and gauge scale displays percentage of cylinder leakage and cylinder pressure.    Pressurized air is supplied to each cylinder and in moments displays a rate of leakage measure from 0 to 100%.      Dual gauge leak detection head with quick coupling & pressure release button, manometer with two test pressure: 0-100psi, 0-7bar.         Specification:    Case Color: Red or Blue    Material: Rubber + Aluminum + Iron    Dual Gauge Readings: 0-100psi, 0-7bar, 0-100%      Test Unit/Mode: bar, psi      Special function: Get Accurate Readings    Pressure Gauge Diameter: 3" / 75mm    Pressure Gauge Height: 6.42" / 163m    Spark Plug Adapters Thread Size: 12mm, 14mm    Hose Overall Length: 17.72" / 450mm    Short Hose Length: 11.81" / 300mm    Fixed Short Connector: M12 x 26mm    Fixed Long Connector: M14 x 26mm    Package Size: 34 * 25 * 10cm    Package Weight: Approx. 1350g            Package List:    1 x Dual gauged Leak Detection Unit(Suitable for use on any petrol engine with 12mm or 14mm spark plugs)    1x Flexi Hose    1x Fixed short connector    1x Fixed long connector    1x Storage Case