Feature:1. Complete Set: Test kit is used for gasoline engine compression testing with 4 standard and special adapters, and 16in flexible hose gauge assembly with quick connector.2. Accurate Measurements: Digital pressure gauge has an incredible 0.5 display resolution within 1% of accurate pressure in the 10200 PSI range.3. Clear Display: The wide backlit LCD screen displays large and clear numbers in 4 units. Automatically shuts off after 2.5 minutes of inactivity to extend battery life.4. Bleeder Valve: Side bleeder valve allows to repeat the test without disconnecting the hose. Comes with a storage box for easy storage and carrying.5. Professional and Durable: Compression tester tools are made with the steel and brass components, built for all day performance in the shop or garage.Specification:Item Type: Automotive Compression TesterMaterial: ABSDisplay Mode: LCD digital displayPressure Unit: Four units can be switched PSI, KPa, Bar , Kgf/cm^2Measuring Range: 3-300PSI, 14BAR, 14Kgf/cm^2Operating Temperature: -20 to 80Battery: 2 x AAA batteries 1.5V 200mah (built in battery)Working Current: 3MA or less (with backlight); 1MA or less (without backlight)Quiescent Current: 5UAApplicable Models: Universal.Package List:1 x Storage Box1 x Gauge7 x Accessories