Real-time monitor:TPMS can the pressure and temperature statuses of 4 tires in real time. When the data are abnormal, the driver will alarm and flashing warning .Power supply:It features the solar panel with high conversion rate and USB charging port, supporting solar charging and USB cable charging, no need to worry about the power shortage.Vibration Power On:It will sense the vibration and turn on when you open the car door.Smart sleep mode(Auto Power OFF):After successful installation, it will sense the vibration and turn on automatically when you open the car door. And it will turn off automatically after parking for 3 minutes, rather energy-saving.Different placements:You can directly place it on the car dashboard or on your car windshield for there are 2 strong adhesive tapes on backside. Sticking it on the front windshield is more in line with the visual habit. You can know the situations of tires without turning your head.Name:Wireless Solar External Tire Pressure MonitorDisplay mode:LCD color screenCharging form:USB + solar chargingCharging voltage:5VSensor:External sensorSignal transmission and reception :ASKPressure measurement range:0-5.0BarTemperature measurement range:-30 Celsius 85 CelsiusBattery type:lithium batteryWaterproof rating:IP67Applicable models:GeneralProduct function:tire pressure monitoringDisplay function:display the pressure value and temperature value of four tires; electricity; solar energy; pressure unit; temperature unitParameters that can be changed by setting:temperature unit (Celsius/Fahrenheit), tire pressure unit (PSI/BAR), high/low temperature alarm value, high pressure/low pressure alarm valueFactory setting:high pressure 3.2Bar; low pressure 1.8bar; temperature 70 degrees CelsiusExternal Sensor Installation Steps:1. Unscrew the tire nozzle cap and install the tire pressure relief ring.2. Install the external tire pressure sensor on the tire nozzle in sequence.3. Screw up the sensor and tighten ring with the wrenchcolour:blackMaterial:ABS+PCsize:Solar charging board size:67*43mmPackage Contents:1 x TPMS Mainframe4 x External Sensor4 x Mounting Nut1 x Wrench1 x Anti Mat1 x USB cable2 x Adhesive Tape1 x English ManualOnly 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.