Feature: 1. Precision Detection System: 4 Sensors design which is waterproof and anti - corrosion anti - off (theft) fully qualified for rainy days. It is most reliable for TPMS High sensitivity Good accuracy for measure pressure and temperature 2. Solar Power: Large solar panel quick charge also including USB connector charge; Green Design Battery replaceable long battery life time 3. Large Screen With Buzzer: Big screen easy to see during driving but also have the buzzer to remind driver. With the wireless transmission technology It will alert immediately when the sensor detect tire temperature or pressure under abnormal condition 4. Easy to Install: Installation without withdraw tire do not occupy the car cigarette lighters position Inflatable without removing sensor 3 mints can be done 5. Universal Type: Can work with any cars and trucks Predict the leak prevent puncture more secure during the whole trip. Specifications: Built-in sensor transmitter specification parameters: Battery life: 3 years Working voltage: 2.1V-3.6V Storage temperature: -40-85 degC Working temperature: -30-80 degC Temperature resolution: 2 degC(25 degC) Pressure range: 0-5.0Bar Pressure resolution: 0.1Bar Waterproof rating: IP67 Transmit power: Transmit power: 433.92MHz Size: 82 x 95mm includes: 1 x Tire Pressure Monitor 4 x Sensor 4 x Hex Nut 1 x Tamper gasket 1 set x Dismantling Tool"