Tire preure monitoring system monitors and displays tire preure and tire temperature in real time. If there is any abnormality, it will alarm in time to ensure driving safety. Features: Mini tire preure detector, with LED display, real-time monitoring of tire preure and temperature to ensure driving safety.When the tire preure or temperature is abnormal, the tire preure detector will sound an alarm, avoiding accidents.Built-in high-performance chip can sense and proce data quickly and effectively, and accurately alarm when the tire preure is abnormal.The screen angle is adjustable to achieve a suitable position. Adjustable screen brightne for clearer display in different environments.USB plug and play, easy to install and use. With USB port, it can charge phones, tablets, driving recorders, etc.Equipped with 4 external sensors, it has a wide range of applications, suitable for sedan car, off-road vehicle, commercial vehicle, SUV, etc. Specifications: Color: BlackMaterial: ABS + PCSensor Type: External SensorTPMS Receiver--Receive Frequency: 433.92MHzWorking Voltage: 3.0VWorking Current: 5mAShutdown/Sleep Current: 100mAStorage Temperature: -40-80Charging Temperature: -10-65External Sensor--Transmit Frequency: 433.92MHzBattery: 1 * CR2050Preure Measurement Range: 0-3.5BARWorking Temperature: -40-120Package Size: 135 * 105 * 35mm/ 5.3 * 4.1 * 1.4inPackage Weight: 160g/ 5.6oz Packing List: 1 * Tire Preure Monitor4 * Sensor1 * Manual