Informacin del producto -Solar power + USB charging, no need to charge by connecting the car cigarette lighter; -Colorful, Clear LCD Digital Screen to display tire information; -Rear time control of pressure and temperature of 4 tires; -Low air pressure / high temperature alarm; -High temperature / leak / low battery alarm; -Smart shock start when the car is moving, no need to turn on / off; -Wireless connection by sensors, easy installation; -Options of internal sensors and external sensors, meets all your needs; -Two interchangeable units (PSI / Bar), you can configure the one you want. How to replace the External Sensor battery? 1. Remove the dismantling gasket 2. Wrench the shell with a wrench 3. Remove the battery 4. Replace a new battery. Main Features 4 Tires Solar TPMS Solar Charging I UsB Charging I Low power consumption 1: Tire Abnormality 2:To Predict the Eak 3:Tire Pressure Prompt 4:Beep Prompt 5:Solar Charging 6:Waterproof And Dustproof 7:Four Rounds of the Same Display 8:Reduce Wear Real-time Monitor Dangerous! 70% of high-speedaccidents are caused by abnormal tire pressure! Intelligent Solar TPMS Car Tire Pressure.Accurate early warning,safer driving,more reassuring. Buzzer Abnormal Alarm The receiver can display the time and monitor the tire pressure and temperature in real time!Rapid induction abnormality, beep early warning! is suitable for school buses, mixer trucks, trucks, special vehicles, SUVs, etc. The screen can clearly display the 4-inch pressure and temperature in real time to ensure driving safety How to choose sensors? External SensorEasy and convenient 1. Accurate pressure data/temperature with a slight error 2. Inflating and deflation need to be disassembled 3. Battery life of about 2-3 years Built-in Sensor Once and for all 1. Accurate pressure/temperature data 2. Inflating and deflation do not require disassembly 3. Battery life of about 5-6 years External sensor (optional): -Easy to install, convenient to replace; -Dust-proof / waterproof / anti-theft; -Anti high temperature and cold; -IP67 protection / waterproof; -Working temperature: -20 -80 ; -Battery life: 2 years, replaceable (4 backup batteries). Internal sensor (optional): -Please install it in the car professional center; -More stable and accurate; -Anti high temperature and cold; -IP67 protection / waterproof; -Working temperature: -40 -125 ; -Battery life: 5 years (battery can not be replaced). Product Display 4 Tire TPMS 1. Left key 2. Set key 3. Right key 4. Solar energy 5. Temperature unit 6. Tire pressure display 7. Tire pressure unit 8. Temperature display 9. Power display 10. USB charging port