Parameter:1.Monitoring system bodyOperating voltage: 3.7-5VStorage temperature:-30C-90Cworking temperature:-30C-85CRF Emission frequency:433.92MH50KHzRF Signal sensitivity:-90dbmDisplay mode:LCD ColorBright screen current:6mABlack screen current:4mASize:85*95MM2.External SensorBattery life:24 monthsOperating voltage:2.1-3.6VStorage temperature:-30C-90Cworking temperature:-30C-85CTemperature resolution:2C25CPressure resolution:0.1BarWaterproof grade:IP67Transmitted power:10dBmEmission frequency:433.92MHzSize:21mm*17mmweight:8.0glithium battery:CR1632ModelFeatures:Solar power charging;High and low pressure, leak alarm;LCD display screen, Simple user interfaceHigh accuracy, Using Freescale imported chips;Real-time monitoring tire pressure and temperature;Smart start: parking automatically sleep, the car starts automatically wake up.Two units (PSI / Bar) changeable, you can set the one you like.Sensors' battery ChangeableSolve the sensor does not work:Match sensor(Vent)Long press /'/'menu key/'/' 3 seconds to /'/'U/S/'/',then short press /'/'menu key/'/' several times to enter/'/'LID/'/' interface,it shows ID of four tires and car icon.Short press /'/'left/right select key/'/' to learn ID opertion.Select tire you plan to learn ID of sensor by press/'/'menu key/'/',default setting is /'/'FL/'/'>/'/'FR/'/'>/'/'RR/'/'>/'/'RL.When tire is selected,display new /'/'ID/'/' in receiver after active sensor//'s ID(internal sensor active by charging/vent tier).Do the same operation to match other three sensor.When all sensor are matched,short press /'/'menu key/'/' to save and go to /'/'Ex/'/'.