Fangrui Product Details 1. Car High Precision Solar Charging Tire Pressure Monitoring System Tpms, Built-in Beep Sensor 2. Features 3. Tire Pressure Monitoring System Accurate Data, Real-time Display. 4. Intelligent Tire Pressure Monitor Can Be Placed In The Windshield And Center Console, Driving Without Lowering The Head, Do Not Block The Line Of Sight, Save Space. 5. When Driving, It Is Easy To See The Large Screen And Has A Buzzer To Remind The Driver. 6. Using Wireless Transmission Technology, The Sensor Will Give An Immediate Warning When It Detects Abnormal Tire Temperature Or Pressure. 7. Built In With Solar Panels And Usb Ports, The Receiver Of The Wireless Tmps Can Be Charged Via Usb Or Daylight, Ensuring The Continuous Operation Of The Tire Pressure Monitoring System. 8. Specification 9. Power Supply Mode: Solar Energyubs 10. Built-in 400mah Polymer Lithium Battery 11. Solar Energy Conversion Rate: 12. Carrying Method: Embedded 13. Detection Pressure Range: 0-8bar