Know the real time air pressure for tires on the screen. Gives you early warning of air leaks and other abnormal tire situations so corrective action can be taken and tire life can be extended. When the pressure or temperature of any tire exceeds the predetermined range, you can see it from the monitor display. Features - Color: Black. - Material: Plastic. - Size: About 9.50X5.80X2.20cm/3.73X2.28X0.86inch. - Waterproof grade: IPX7. - Lets the driver get the real-time tire pressure data, temperature data and status, always keeping an eye on your car's performance. - Solar energy powered, which has the characteristics of green, low carbon and renewable advantages, enabling you to charge the device faster and greener. - Accurate: Real-time tire pressure data, you can know abnormal pressure and temperature, which is very convenient and practical. - High-definition color screen display, supports solar energy charging. - The efforts and fine craftsmanship we put into the making of this product make for superior reliability.