Features: 1.The tire pressure monitor system uses lithium batteries and solar panels for charging. When solar charging, no need to connect car cigarette lighter to charge. 2.The TPMS is equipped with 6 external sensors, can display the time and monitor the tire pressure and temperature in real time day and night. 3.The installation of TPMS could reduce tire wear, prevent tire explosion and air leakage, save fuel, and keep your car in good care, more helpful. 4.Wireless connect with sensors, easy attached to glass for lightweight design. With the help of RF wireless technology, the TPMS can automatically alarm when there are abnormal, no need to turn on/off. 5.Color LCD digital display for clear display of tire information, and simultaneously display 6 tires, can also be changed to 4 tires and support tire position change function. 6.The monitor can effectively reduce the traffic accidents on the highway that are caused by abnormal tire pressure to ensure your safety. Specification: Item Type: Tire Pressure Monitor_x000D_ _x000D_ Material: PC + Nylon Plus Fiber_x000D_ TPMS Host:_x000D_ Size: Approx. 112x80x26mm/4.4x3.1x1in_x000D_ Built-In Lithium Battery: 500mAh, 402040_x000D_ Display: Pressure, Temperature, Air Leakage Alarm_x000D_ Frequency: 433.92MHz20.00MHz_x000D_ Working Temperature: -20-80_x000D_ Storage Temperature: -40-80_x000D_ Charging Method: USB + Solar_x000D_ Working Voltage: 3.5-4.2v_x000D_ Factory Default High and Low Pressure Values: 7.0Bar-5.0Bar_x000D_ Working Current: 15MA_x000D_ Factory Default Temperature Value: 68_x000D_ Installation Location: Center Console_x000D_ _x000D_ External Sensor:_x000D_ Button Battery: 60mAh, CR1632 (Included)_x000D_ Waterproof and Dustproof: IP67_x000D_ Frequency: 433.92MHz20.00MHz_x000D_ Pressure Range: 0-8Bar_x000D_ Storage Temperature: -30-86_x000D_ Accurate Pressure: +/-0.1Bar_x000D_ Accurate Temperature: +/-3_x000D_ External Working Temperature: -20-80_x000D_ Internal Working Temperature: -40-+125_x000D_ _x000D_ How to Use: Plug and Play_x000D_ Application: Trailers, Trucks, RVs, Camping Cars, Trucks, Minivans, etc.