Feature: 1. Real-Time Data Display: The tire monitoring system simultaneously measures and displays pressure and temperature for all six tires, providing drivers with critical information at a glance for optimal safety and maintenance. 2. Dual Charging Options: This solar tire pressure monitoring system offers convenient charging through both solar energy and USB, ensuring continuous operation regardless of conditions, so you can drive with confidence. 3. User-Friendly Design: With an intelligent auto on/off feature, the display activates when your vehicle starts and shuts down when parked. Plus, the external sensors allow for a quick and easy two-minute installation without the need for tire disassembly. 4. Double Prompt Alarm: Our RV tire pressure monitoring system includes both visual and audible alarms for critical warnings, such as low tire pressure or low sensor battery status. This ensures you are always informed and can take prompt action when necessary. 5. Comprehensive Tire Pressure Monitoring: Our solar-powered tire pressure monitoring system is designed for various vehicles, including RVs, off-road pickups, and trailers. It supports tire pressure values within the range of 0-9.9 Bar (0-144 PSI), enhancing safety and performance. Specification: Item Name: Tire Pressure Monitoring SystemMain Material: ABSOperating Voltage: 3.7VHost Battery: Built-in 3.7V 300mAh Lithium BatteryExternal Sensor Battery: Built-in CR1632 Button CellScreen Pressure Unit: PSI/BARScreen Temperature Unit: ℃/℉Operating Temperature: -20℃ to 70℃Waterproof Rating: IPX7Pressure Range: 0-9.9BAR/ 0-144PSITransmission Frequency: 433.92 MHzTransmission Power: >10 dBmCharging Voltage: DC 5.1VProduct Color: BlackProduct Size: 9.38*8.85*2.85cm/3.69*3.48*1.12inch Package List: 1 * Host6 * External Sensors6 * Anti-theft Nuts1 * Wrench1 * Double-sided Tape1 * USB Charging Cable1 * English User Manual