This Product Does Not Include BatteriesFunction: Suitable for all cars, motorcycles and trucksProduct Introduction:1. Digital display chip, LCD display screen, the test is more accurate, more reliable, and cost-effective. 2. Four test units: PSI, BAR, KPA KG 3. The button battery can be replaced. 4. Streamlined appearance design, more exquisite. Instructions: 1. Start the tire pressure gauge, it will display as 8.8.8 after power on, and then lightly press the power button to complete the four types of PSI, BAR and KPA KG Conversion of units on the LED display. 2. Push the pressure measuring nozzle into the tire valve quickly and firmly, and keep it airtight and stop for one second. Pull out the tire pressure gauge and read the value. 1KG/CM2=14.2PSI 1KG/CM2=0.98BAR 1KG/CM2=98.0KPA 3. This product will automatically shut down after half a minute. Notelong press to turn on, long press to turn off Package included: 1pcs digital Tire pressure gauge