Features and Benefits: Adapters included: 14mm and 18mm short solid adapter, 14mm and 18mm long flex adapter, and 14mm long reach adapter Screw-in adapters with o-rings provide professional accuracy Long flex 12" hose and adapters eliminate need to remove engine accessories to test compression Side release valve allows quick re-testing of cylinder without removing adapter The 2-1/2" gauge has a dual scale dial with ranges from 0-300 PSI and 0-21 bar This universal compression tester test compression on domestic and foreign cars and trucks with gasoline engines. This kit comes with adapters, screw in adapters, and a long flex hose. Also includes the instructions and specifications. It works great for any technician!Universal Compression Tester Full Specifications Brand Lang Tools Color grey What It Does Side release valve allows quick re-testing of cylinder without removing adapter Package Type Blow_Molded General Part Of Vehicle Engine_Mechanical Specific Part Of Vehicle Engine Finish Satin Material Upper Metal/Plastic