Jansite TPMS Car Tire Pressure Monitoring Intelligent System Solar Power LED Display Auto Alarm Monitor Big Screen TPMS Sensor Please note!!! When you receive the package and turn onthe receiver, the receiver displays --"or 00, please don't worry. You only need to mount the sensor on the tire, wait for about 1 minute, and you will see the display shows the pressure and temperature of the tire. Main Features: -Solar power charging, LCD color displaying, adjustable brightness -Rear-time monitoring the pressure & temperature -Low air pressure/high temperature warning -Set up sensor: learn new sensor ID code when replace sensor - Two units (PSI / Bar) changeable, you can set the one you like. -Pressure value: about 0.5-6 bar (7.25-87PSI) Receiver Specification: Solar power charging LCD display Adhere to windscreen for installation Operating frequency: 433.92Mhz 50KHz Operating voltage: 3.7-5 V Working temperature: -20 -75 Sensor Specification: Operating frequency: 433.92Mhz Working temperature: -40 -120 Humidity: 0% to 100% Battery life:External sensor Working pressure: 7.25 87Psi Alarm pressure: Pressure accuracy: 1.5Psi Working voltage: 2.1-3.6V Waterproof: Ip67 Intelligent On and Off When the car is started, the vibration of the machine is automatically opened and the machine is shut down automatically when it is still, without manual operation. 1+1 charging mode Solar charging +USB charging Suitable for many kinds of cars Suitable for Cars, ORV, SUV, MPV, Minibus, Wagon, etc.