Type: Intelligent Solar TPMS Car Tire Pressure Solar power charging, don' need to charge by connecting car lighter Colorful LCD Digital displaying, clear to show tire information Rear-time monitoring pressure & temperature of 4 tires Low air pressure/high temperature alarm High Temperature / Leakage / Low Battery Alarm Intelligent Shock Boot when car moving, don' need to turn on/off Wireless connect by sensors, easy install Two units (PSI / Bar) changeable, you can set you like. External Sensor: Easy to install, convenient to replace Dust-Proof / Water-Proof / Anti-theft Anti High Temperate and Cold IP67 Protection / Waterproof Working Temperature: -20℃-60℃ Temperature measurement: -30 ℃ -85 ℃ Battery Life: 3-5 Years, replaceable Detection pressure range: 0-4.0bar Device Function: ( 1 ) Real-time monitoring of tire pressure temperature ( 2 ) Supports solar charging and USB charging ( 3 ) Numbers for tire pressure / temperature alarm can be set ( 4 ) Air leakage alarm , high / low pressure alarm , high temperature alarm ( 5 ) Changeable tire position Color: As Shown Material: Metal+ABS Package Contents: 1 x Tire Pressure Monitoring System Kit 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.