Only for four-wheel cars Describe: 1. Support solar USB dual charging, new and unique appearance design, slow air leak alarm, fast air leak alarm, high tire preure alarm, high temperature alarm, low sensor power, sensor failure and other multiple alarms 2. Brand-new and unique appearance design, large color screen display, tire preure temperature, time and date are displayed on the same screen, tire status is clear at a glance, screen display and buzzer dual alarm, effectively prevent tire abnormalities 3. Solar & USB charging: Smart wirele TPMS with 2 charging methods ensures continuous operation of the tire preure monitoring system, built-in 1000 mAh super-capacity lithium battery and equipped with USB charging port, supports rainy charging, all-weather battery life, bid farewell to traditional wiring. 4. The tire preure monitoring system is equipped with 4 external sensors, which are dustproof, waterproof and snowproof, and can withstand various harsh environments. Easy installation, low power consumption, IPX7 waterproof design, water jet resistance, 30 minutes of water ingre without trouble, walking through rain screens, splashing water, parking lot water, tire preure monitoring will not be affected. 5. Slow air leak alarm, fast air leak alarm, high tire preure alarm, high temperature alarm, low sensor power, sensor failure and other multiple alarms, which can receive real-time signals, monitor tire conditions in real time, and travel safely with you. 6. Wirele installation, stable signal, accurate data, instant response display, 0 delay for abnormal problems, stable and uninterrupted, simple and portable, do whatever you want, it is an excellent gift for outdoor self-driving, long-distance self-driving, and holiday for relatives and friends. Specification: Working frequency 433.92MHZ Working voltage 3.7-5v USB charging current Sleep current: 4ma Long-term storage temperature -30C~+90C Working current Working environment -30C~+85C Monitoring temperature range -40C~+130C Monitoring air preure range 0-3.5Bar Package list: Receiver*1 Anti-theft nut*4 Sensor*4 usb data cable*1 Manual *1 Anti-slip mat*1