Usage Tips:and high quality. Item Type: Digital Tire Pressure Gauge Application: Car, Van, Bus, Truck, Motorcycle, Bicycle, etc. Display: LED Backlight: Yes Unit: Psi,Bar,Kpa,Kg/cm2 Function: Inflation, Deflation, Pressure Gauge, Pressure Monitoring Power Supply:2 x AAA Batteries (included) Working Temperature:-20℃-65℃ Pressure Range:0-255Psi/0-18Bar/0-18Kg/cm2/0-1800KPA Precision:±0.3Psi/0.02Bar (Temperature in 20-30℃) Resolution Ratio:0.1Psi/0.01Bar/0.01Kg/cm2/1Kpa Application:Car, Van, Bus, Truck, Motorcycle, Bicycle, etc. Note: The product can not be directly inflated, which needs to be connected to and other air source equipment. To install or replace the battery, open the soft adhesive sheath to see the battery compartment. If the two keys cannot be pressed at the same time, the calibration mode will be entered. Remove the battery and reinstall it. The backlight will automatically turn off within 15 seconds. To turn it on again, press the on button. Convert by unit and select the desired unit. After the selected unit is shut down, it will be saved as the default unit. Note: Installation guide not included, we strongly recommend you seek professional installation. Please check as much as possible to make sure the item is what you need. Tips:The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use. Colour:As Shown Material:Plastic Package Contents: 1 * Tire Pressure Gauge Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.