Features 1、With quick connection, air pressure measurement and other functions, the premium quality tire pressure gauge can also deflate and inflate. 2、Make use of LCD liquid crystal display, high precision, easy to calibrate the pressure, easy to read, can display the test value of 2‑3s. 3、If there is no operation within 15 seconds, the display will automatically shut down to save battery power. The data can be read clearly in the dark. 4、When the tire pressure is extremely high, the bleed valve helps to vent the air. When the air pressure is too low, connect an air compressor (not included) and press the inflate button to inflate the tires. 5、There are four pressure units: PSI, KPa, Bar and Kgf/cm^2, can be switched according to your personal preference and reading habits. Specification Item Type: Tire Pressure Gauge Material: Rubber + Aluminum Alloy + Copper Display Mode: LCD digital display Pressure Unit: 4 units can be switched, PSI, KPa, Bar, Kgf/cm^2 Measuring Range: 3-200PSI/14BAR/14Kgf/cm^2 Measurement Accuracy: (3-100PSI) ±1PSI, over 100PSI ±2PSI Working Temperature: -20 to 60℃ Key Functions: Switch key (left), unit switch key (right) Working Voltage: DC3.1V, can be replaced when the battery voltage is lower than 2.5V, the LCD battery symbol flashes. Battery: 2pcs AAA battery, 1.5V (not included) Working Current: ≤3MA or less (with backlight); ≤1MA or less (without backlight) Quiescent Current: ≤5UA Application: For motorcycles, cars, small and medium bus trucks, etc. Package List 1 x Tire Pressure Gauge