Description: Car Tire Pressure/Temperature Monitoring: With this solar car tire pressure monitoring system, you can easily real time tire excessive temperature, improving fuel efficiency, preventing tire blowout and prolonging tire life. 4 External Sensors: Comes with 4pcs external sensors, with advantages of easy installation, wireless anti-interference and IPX7 waterproof protection. Solar and USB Charging: Double charging ways assure that the tire pressure monitoring system works normally on sunny or rainy days. Display Screen: The tire pressure monitoring system displays car tire pressure and temperature, pressure unit and temperature unit is ℃. Four FSTN provides clear reading so that you can easily read the data. Small Size and Understated Appearance: Suitable for RV, MPV, SUV, Sedan Car and minivans. Specification: Material: PC Size: Approx. 10x5cm / 3.94x1.97inch Color: Black Working Temperature: -20℃-60℃ IPX7 Protection / Waterproof Working Temperature：-20℃ ~ +60℃ / -4℉ ~ +140℉ Pressure Range: 0 - 5.0 Bar Package Includes: 1 Piece Tire Pressure 4 Pieces External Sensor 1 Piece USB Cable 4 Pieces Nut 1 Piece Wrench 2 Pieces Double Sided Adhesive Tape 1 Piece Note: 1.Please allow a slight difference between the size above and the actual item due to manual measurement. 2.Due to the difference between different monitors, there could be a little color difference acceptable, please kindly note.