Specification: Type:Solar Power Motorcycle TPMS Material: ABS, copper Displayer Parameter Working Temperature:(-20+80) Storage Temperature:(-30 +85) Input Voltage:DC 5V Transmitting Frequency:433.92MHz Size( L*W*H )mm:40*50*25mm Weight:68g Parameter Working Temperature:(-40~+105) Storage Temperature:(-40~+120) Pressure Range:0~116psi0~8bar Pressure Precision:1.5PSI0.1bar Temperature Precision:3 Transmitting Power:10dbm@50 Transmitting Frequency:433.92MHz Battery Life:2 years Size:Height:15mm;Diameter:23mm Weight:9.5g Features 1.Use solar energy and Magnetic Charging Cable to get electricity,with 2 external mini s.Easy to installation and battery can be replaced by driver. 2. waterproof grade:IP67. 3.The adopts Japanese Panasonic battery, wide temperature type, so that the can work normally at minus 20 degrees, it is not easy to wear out, stable and durable, and battey life can be lasted for 2 years. 4.Monitoring the tempreature and pressure with high degree accuracy, display for 2 tires at the same time. 5.6 Alarm Modes and Real-time Monitoring: Rv Vehicle Sensors Tire Pressure Monitoring System Provides 6 Alarm Modes (Including High / Low Pressure Alarm, High Temperature Alarm, Air Leakage Alarm, Battery Low Power Alarm and Vehicle Battery Low Power Alarm), Real-time Monitoring, and Immediately Provides Buzzer Alarm and Screen Red Flashing Prompt Under Abnormal Conditions, ensuring your driving safety.Monitor can be setted the high and low pressure alarm values of the front and rear wheels respectively. 6.There is a breathable film on the back of the monitor to prevent water from fogging up in the monitor when the temperature is high. 7.Save fuel,forsee air leakage,reduce tire wearout,balance Vehicle Sensors Tire Pressure,ensure safety driving.