Features: Brand new and high quality ; USB and Solar power charging; High and low pressure, leak alarm; LCD display screen, Simple user interface ; Real-time monitoring Vehicle Sensors Tire Pressure and temperature; The tire position of any swap function(no need to remove the in the tire) Specification: Please install in by Professional car center More stable and accurate Operating frequency: 433.92Mhz0.1MHZ Working Temperature: -40~85 Operating Voltage: 2.0-3.6V Working current: static1uA, working current15mA External (Optional): Easy to install, convenient to replace Dust-Proof / Water-Proof / Anti-theft Operating Voltage: 5V Battery life:24 months Waterproof grade:IPX7 Working current: static50uA, working current15mA Monitioring range: temperature: -40~85, pressure: 0bar~3.5bar Accuracy: temperature: 2, pressure: 0.1bar Package Included: 1 x Solar Charging Vehicle Sensors Tyre Pressure Monitoring System 4 x External s 1 x USB cable 1 set x Accessories (tool)