Specifications: Name:SolarPowerTirePreureMonitoringSystemWorkingtemperature:-30~-70Preureaccuracy:0.1barTemperatureaccuracy:2Sensortransmiionfrequency:433.92MHzReplaceablebattery:Yes(built-1100mAhlithiumbattery)Material:ABS+PCWaterproofrating:IPX67(MonitorYSensors)Productsize:about45*45*22mm/1.77*1.77*0.87inch PackingList:1*TirePreureMonitoringSystemforMotorcycle2*Sensor1*Bracket1*USBChargingCable1*Manual1*WrenchforInstallation Dual Charging Mode,Solar Charging&Magnetic Charging&Built-in1100 mAh Battery IPX67 waterproof level sensors & monitor, Anti-rust & Durable Displays Hours and Minutes LCD-FSTN Disply Screen, Clearly Visible During the Day and Night The Tire Preure Units Psi and Bar can be Switched Arbitrarily The Monitor automatically power ON & OFF, Power saving Monitor Installation Scene Suitable for a Variety of Car Models Safety Real-time monitoring of tire preure&temperature 5 kinds of abnormal alarms to protect tires and drive safety High-preure alarm Low-preure alarm High-temperature alarm Air leaking alarm Sensor low battery alarm