Spec: Item Type: Tire Pressure Gauge Material: Rubber + Metal Display Mode: LCD digital display Pressure Unit: PSI, KPa, Bar, Kgf/cm²2 Measuring Range: 3-200PSI/14BAR/14Kgf/cm² Measurement Accuracy: (3-100PSI) ±1PSI, over 100PSI ±2PSI Working Temperature: -20 to 80℃ Key Functions: Switch key (left), unit switch key (right) Working Voltage: DC3.1V (2 x 1.5V AAA batteries), replaceable, when the battery voltage is lower than 2.5V, the LCD battery label will flash Battery: 2 x AAA batteries 1.5v (not included) Scope of Application: For motorcycles, cars, small and medium passenger trucks, How to Use: 1.Please measure the tire pressure when the tire is cold. 2. Use the tail end of the tire pressure gauge to press the tire valve tightly, that is, the number will display the highest value. 3. Please keep the front vertical direction to measure the pressure with the tire pressure gauge, and read the tire pressure. 4. Please check the tire pressure value (refer to the description of the car for this pressure value) and keep the tire pressure correct. 5.After the reading is completed, please press the pressure relief valve to let the pressure in the pressure gauge drain. 6. After the measurement, re-lock the cover on the tire valve. packing list: 1 x Tire Pressure Gauge