Features:1, solar technology, all-weather uninterrupted life2, dual power supply, powerful power supply, even without light can also use usb power supply3, four tire tire preure side of the same, safe and worry-free4, intelligent chip control, accurate real-time prompt5, automatic switching machine, energy saving6, multi-vehicle use, multi-environment work7, Seiko aviation aluminum, strong seal padsNote:1, the first time when the sensor and the receiver has been paired, change the sensor or receiver only need to re-paired2, the monitor sleep state to detect the vibration signal automatically boot, display tire preure, temperature data, stop more than 10 minutes after the automatic sleep3, pre the "-" key for 3 seconds to turn on / off4, the tire running more than 20km, the sensor preure, temperature automatically update the data5, the alarm description: When the tire preure exceeds the set safe range or leakage, the corresponding tire position on the display preure and alarm symbols flashing, while the buzzer iued a continuous bi bi bi sound prompt;Package included:Receiver *1Sensor *4