Advanced smart sensor: When the car is stationary for about 10 minutes, it will automatically enter the sleep standby state. And automatically enter the working state when vibration is caused. Sensor with strong signal receiving ability: stable signal, 3s data upgrade, 24-hour real-time monitoring of front and rear tire preure and temperature. Sturdy and durable material: The device is waterproof, dustproof, and firmly attached to the motorcycle, driving in harsh environments without worry. Solar & USB dual power supply: On sunny days, the high-efficiency solar panel automatically supplies power; while the built-in explosion-proof and reliable lithium battery allows you to use the USB cable on rainy days. High-precision L digital display: The tire preure stability value is accurately monitored throughout the proce, allowing you to check the tire preure/temperature value at any time. Specification: Material: ABS+PC Package Weight: 200g / 7.05oz Package size: 15.5*11.5*3.5cm / 6.10*4.53*1.38in Host: Action Type: Button Solar Panels: Polysilicon Polishing Charging voltage: DC5V Frequency: 433.9022 Charging type: USB+Solar Lithium battery: 160mAh Waterproof and dustproof: IP67 Factory default low voltage value: 2 Bar Factory default high voltage value: 3 Bar Factory default temperature: 68 Working temperature: -20~80 Storage temperature: -30~85 Product size: 73*42*20mm / 2.87*1.65*0.79in Sensor: Transmit power: Preure: 0~3.5 Bar Preure: 0.1 Bar Temperature: 3 Working temperature: -20~80 Storage temperature: -30~85 Item size: 20*17mm/0.79*0.67ins Packing List: 1 * Tire preure monitoring host 1*Host bracket 1*Wrench 2*External sensor 2*Anti-theft nut