Tire Pressure Monitoring Systems TPMS 6 Alarm Modes Wireless Solar Power and USB Charge with 4 External Sensors Real Time Pressure and Temperature Alarm Auto Safety Monitor for Truck Rv Trailer Car

USB & Solar Power: Support USB and solar power charging ways. Efficient solar panel charging and built-in lithium battery(No need to replace), which ensure the tire pressure monitoring system will work continuously. USB charging takes only 3 hours to fully charge, solar charging takes 6 hours, and it can work for 30 days in a fully charged state. No matter whether it is sunny or rainy, there is no need to worry about power problems. Safe & Reliable: Including fast leak alarm/slow leak alarm/high temperature alarm/high pressure alarm/sensor fault alarm/low battery alarm 6 modes. Whether it is hot or cold, the working environment is -20 to 70 degrees Celsius(-4 to 158 degree Fahrenheit). When the temperature in the car is above 70 degrees Celsius(158 degree Fahrenheit), the machine will automatically protects，in order to ensure your driving safety. LCD Screen Display: Real-time display pressure and temperature on a colorful screen display, also can be set with pressure unit：PS