[5 Alarm Modes] - To protect the safety of the driver and passengers, Including fast leak alarm, slow leak alarm, high-pressure alarm, high-temperature alarm, sensor fault alarm, and sensor battery low power alarm, to your safe driving. (Press any button will stop alarming) [Solar & USB Charging] - The tire pressure monitoring system receiver itself has a solar panel and large capacity lithium battery.The sensor battery of a car tire pressure monitoring system can last for 3 years and solar and USB can be recharged,so there is no need to replace the sensor battery first. The cigar box does not interfere,so it can be used normally on sunny or . [4 Smart Sensors] - The external tpms buzzer sounds by detecting the temperature and pressure of 4 tires simultaneously.The tire pressure monitor sensor has an IP67 rating, so there is no need to worry about driving the car under high pressure and it is protected from rain and moisture. Know the tire pressure and tire temperature without wiring. The sensor is locked with a nut to prevent theft, so you can use the circuit with confidence! [Automatic Vibration Detection] - When the engine starts,the tire pressure monitoring system will detect vibration and start automatically.If the tire pressure monitor sensor does not detect vibration,the display will automatically enter sleep mode to save power.After the product is opened,there is no need to close the product when not in use,it'll automatically turn on when the car vibrating.After manually shutting down the product,you need to manually start it on restart. [Widely Use] - Suitable for car tire pressure range less than 3.5 Bar, like passenger cars, off-road vehicles, commercial vehicles, MPV, SUV, minivans, and trucks. Colour: black Material: ABS Package Contents: 1 x Tire pressure monitor 4 x Sensor Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.