tire gauge with keychain 1. Four units in measuring pressure: PSI, Bar, Kgf/cm², Kpa.2. Range:0~100PSI,0-7.0Bar,0-7.0Kgf/cm2,0-700Kpa 3. Resolution: 0.1PSI,0.01Bar,0.01Kgf/cm2,1Kpa4. Accuracy: ±1%5. Operation Temp.: -5°C~50°C6. Material: ABS plastic7. Power Supply 3V Lithium button Battery 8. Keychain tire gauge