Features 1、High quality Tire Pressure Gauge can not only measure tire pressure but also deflate tire air. 2、LCD display and blue LCD nozzle for maximum visibility in dimmer environment. 3、Possess four unit modes of air pressure measurement, repeatedly press the on-off key to switch. 4、Compact size and light weight, cell buttery(excluded), easy to carry and convenient in use. 5、Superior ABS engineering plastic, excellent texture, good wear resistance and optimum durability. Specifications: Features: High quality Tire Pressure Gauge can not only measure tire pressure but also deflate tire air. LCD display and blue LCD nozzle for maximum visibility in dimmer environment. Possess four unit modes of air pressure measurement, repeatedly press the on-off key to switch. Compact size and light weight, cell buttery(excluded), easy to carry and convenient in use. Superior ABS engineering plastic, excellent texture, good wear resistance and optimum durability. Function Description: 1. The car tire pressure shall be measured when it is idle. 2. Press and hold the on-off key for 3 seconds to turn it on, it will automatically reset to display "0.0". 3. Align the nozzle of the tire pressure gauge with the car tire valve and press it in (you need to remove the tire valve cap first) and ensure no air leakage, keep until it has a stable measurement value. 4. The measured value will remain for approximately 90 seconds and then the display will automatically turn off. 5. Long press (press and hold) the on-off key for 3 seconds to force shutdown. 6. This product has four unit modes of air pressure measurement: PSI (pounds per square inch, suitable for American use), PSI converted to KG/Cm2 (values divided by 14.2), BAR (Bar, suitable for European use), KG/Cm2 (kg/cm2, suitable for China use), repeatedly press the on-off key to switch. 7. Press the valve core firmly to measure and gently press to deflate. Specification: Condition: Brand New Material: ABS Optional Color: Gold, Red, Blue, Black, Silver Operating Temperature: 30 -122℉ (0 - 50°C) Measuring Range: 2 -150 PSI Measurement Error Value: ±1 PSI Package Weight: Approx.81g/2.9oz Package List: 1 * Tire Pressure Gauge Package List