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 Material: PC + Nylon Plus Fiber TPMS Host: Size: Approx. 112x80x26mm/4.4x3.1x1in Built-In Lithium Battery: 500mAh, 402040 Display: Pressure, Temperature, Air Leakage Alarm Frequency: 433.92MHz20.00MHz Working Temperature: -20-80 Storage Temperature: -40-80 Charging Method: USB + Solar Working Voltage: 3.5-4.2v Factory Default High and Low Pressure Values: 7.0Bar-5.0Bar Working Current: 15MA Factory Default Temperature Value: 68 Installation Location: Center Console External Sensor: Button Battery: 60mAh, CR1632 (Included) Waterproof and Dustproof: IP67 Frequency: 433.92MHz20.00MHz Pressure Range: 0-8Bar Storage Temperature: -30-86 Accurate Pressure: +/-0.1Bar Accurate Temperature: +/-3 External Working Temperature: -20-80 Internal Working Temperature: -40-+125 How to Use: Plug and Play Application: Trailers, Trucks, RVs, Camping Cars, Trucks, Minivans, etc.