Features: 1.Designed to maintain correct tire pressure, reduce tire wear and extend tire life. 2. Digital display reading instantly and clearly being shown, easy to see. 3. Easy to operate. 4. Non-slip design makes it easy to hold onto and the ergonomic design is both suitable for men and women's hands. 5. Used for cars, trucks, motorcycles, bicycles, etc. Specification: FEATURES: Test range: 0-100 PSI Accuracy: 1.5PSI Resolution: 0.5PSI Units: PSI, BAR, KPA, Kg/cm2 Power supply: one 3V CR2032 battery Product size: 143x45x23mm Product weight: about 41g Instructions: Press ON key to turn on the gauge. Last test result is shown automatically. Press ON key to select needed unit: PSIBARKPA Kg/cm2. Place gauge's nozzle onto tire valve. Press tightly, make sure no hissing sound can be heard. Test for 3 seconds, move away the gauge. Read the result. 15 seconds later, LCD shows zero. Ready for another test. If gauge is not operated for 60 seconds, it will power off automatically. Or press ON ky for 3 seconds to turn off the gauge. PackageList: 1 x Digital Tire Pressure Gauge (with battery) 1 x User Manual