FetureIntelligent Prompts : Under 6 Alarm modes, TPMS will have voice prompt to Broadcast Tire problem, no need to stare at the monitor screen to confirm which problem when driving, offer a safe and comfortable driving travel. 4 External Sensors : Sensors are waterproof , you can also use it in the raining days. Car tire pressure is high sensitive of tire pressure and temperature and transmit data to LCD screen. It is really concerning for your safe and convenience.Solar power and USB rechargeable : All weather monitoring, tyre pressure can be charged by solar when sunny day, tyre pressure monitoring system also can be charged by USB cable when it is rainy cloudy day. Tyre pressure gauge is really convenient and energy saving.6 Alarm Modes - Rocboc tire pressure monitoring system boasts accurate data, real-time display.Visual and audible warning for fast leak alarm, slow leak alarm, high pressure alarm, high temperature alarm, sensor fault alarm and sensor battery low power alarm, ensure safe driving.Easy Installation -- Self-Install in 10 Minutes: Wireless transmission design and 4 cap external sensors make the car tyre pressure monitor easy to install on your vehicles, no need to disassemble your tires.Suitable for tire pressure range less than 3.5 Bar, like sedans, SUV, MPV and etc.Specifications:Size: 9.4*8.5*2.6CM (approximately)The height of the external sensor : 1.7CMThe diameter of the external sensor :2.3CMMaterial: ABS+PPColour: Black Working temperature: -20~70Optional pressure unit: Psi / BarOptional temperature unit: C, FDisplay battery capacity: 400mAhMonitoring pressure range: 0-3.5 Bar / 0-50 PsiMonitor working temperature: -40~+80/ -40~176Waterproof rating: IP67Battery life: 3 yearsWorking voltage: 2.1V-3.6VCharging ways: USB/solar energyTemperature accuracy: 1CPressure accuracy: 0.1BARType:Car Pressure Monitoring SystemsModel:Pressure Monitoring SystemPackage Included:1*Display4*sensors4*gasket1*wrench1*Instruction manual1*data cable1*SMDNote:The colors may be a little difference for the different monitor display.Please check as much as possible to make sure the item is the one that you need.