Wireless Solar TPMS LCD Car Solar Car Tire Pressure Monitoring System W/4 External Sensors Solar Car Tire Pressure Monitoring System Features: - Real-Time Warnings: When the air pressure or temperature of any tire goes outside the predetermined range, both the monitor display and an audio alarm will warn you. Youre also warned when the battery of a tire sensor is low. - 2 Charging Ways: Support USB cable charging and solar charging. It does not occupy the car cigarette lighter socket, ensure the Solar Car Tire Pressure Monitoring System will work continuously. - 6 Alarm Modes: This Solar Car Tire Pressure Monitoring System have Fast leak alarm, slow leak alarm, high-pressure alarm high-temperature alarm, sensor fault alarm, and sensor low battery alarm. - Easy Installation: Self-Install in 10 minutes: 1. Unscrew the valve dustproof cap then screw on the hexagonal nut; 2. Screw on the sensor; 3. Reversely tighten up the hexagonal nut to the sensor with the spanner; 4. Check the air leak using soapy water. - Multipurpose: This Solar Car Tire Pressure Monitoring System suitable for Any Car Type - Suitable for tire pressure range less than 3.2 Bar, like sedans, SUV, MPV and etc. Solar Car Tire Pressure Monitoring System Specification: Type : Solar Car Tire Pressure Monitoring System Sensor Working Voltage : 2 - 3.6V Display Working Voltage : 3.5 - 4.2V Optional Pressure Units : Psi / Bar Optional Temperature Units : Deg.C, Deg.F Operating Frequency : 433.92MHz / - 20KHz Monitoring Pressure Scope : 1.5 - 3.2 Bar(15-35psi) Display Battery Capacity : 280mAh Sensor Battery Capacity : 120mAh Package Includes: 1 x Solar Car Tire Pressure Monitoring System 4 x External Sensor 1 x Wrench 4 x Anti-theft Nut