Good News:Srnubi launched a 7" /9" / 10.1" universal android radio, the product dvr of this link can be used on the android radio below, if you want to buy an android radio, please click the image below to purchase. 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 preure and temperature of the tire. Main Features:-Wide Field of view Big Screen Solar power charging Car TPMS-Rear-time monitoring the preure & temperature-Low air preure/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.-Preure 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 C -75 CSensor Specification: Operating frequency: 433.92MhzWorking temperature: -40 C -120 C Humidity: 0% to 100% Battery life:External sensor> 2 years/ 30,000 km Working preure: 7.25 87Psi Alarm preure: >29Psi or Protect your driving safety Intelligent On and OffWhen the car is started, the vibration of the machine is automatically opened and the machineis shut down automatically when it is still, without manual operation. 1+1 charging modeSolar charging +USB charging Suitable for many kinds of carsSuitable for Cars, ORV, SUV, MPV, Minibus, Wagon, etc.