Part number:HAA9UZ4QT124QFTR Size:1 Colour:3 Pcs Black Item Package Quantity:1 Descriptions: Compression gauge performs carbon build checks and delay tests. And it contains the need to identify damaged pistons, worn rings, burnt s, and damaged cylinder head gaskets. Superbly manufactured and professionally tested, this engine compression tester provides high accuracy ratings. Specifications: Product size: 13*8*6.8cm/5.1*3.1*2.6inch Suitable for: Checking cylinder compression from 0 PSI to 300 PSI. (0 to 21 kg/cm2) Fits: 14mm/0.56in and 18mm/0.71in spark plug threads Equipped with air hold , instrument reset button, and 11 inch hose Product List: Cylinder Compression Tester*1 Gauge Tool: Compression gauge contains the need to identify damaged pistons, worn rings, burnt valves, and damaged cylinder head gaskets. It also performs carbon build checks and delay tests. Tolerance +/- 3%: Compression tester automotive's scale range is 0 - 21 bar, with the diameter of 2.76in, tolerance +/- 3%, weight 21.5 kg/cm and 300 PSI. Precise Testing: Engine compression tester with exquisite manufacturing and professional testing provides a high level of precision. Please disconnect the power to the ignition coil before starting. Special Gift: Cylinder compression tester is the perfect gift for home and commercial applications. It is a car repair tool for dad, brother, and friends as home and commercial applications. Wide Application: Compression tester is compatible with petrol engines on motorcycles, cars, trucks, lawn mowers, and ATVs. And for 0.56in and 0.71in spark plug threads.