Accurately Determines the Pressure of Air Inside the Tyre. Simple Operation - Auto Power Off. Built in Backlight. Audible Buzzer. Replaceable Battery. Clear Transparent LCD Display. Calibration in Bar, Kpa & Psi. Lithium & Lr 44 Alkaline. Measuring Range: 2-100 Psi. Resolution: 0.5 Psi. Accuracy: ±1%. Operating Thermometer: 10c-30c. PVC Leather Metal Case Available. Size: 3x15cm. Minimum Quantity: 500.