Bullet Points:1.[2 Charging Methods]: Our tire preure monitoring system features the built- 1100mAh lithium battery which supports solar wirele charging and USB charging, so there is no need to worry about the problem of being unable to charge without power. It is universally suitable for two-wheeled vehicles, such as motorcycles, bicycles, electric vehicles other two-wheeled vehicles.2.[7 Alarm Modes]: This digital tire preure meter contains 7 alarm mode for you to use. Including high -voltage alarm, low -voltage alarm, high temperature alarm, fast air leakage alarm, sensor data lo alarm, sensor low battery alarm, receiver low power alarm.3.[Smart Chips]:Adopts advanced smart chips to make data more accurate timely, thus preventing emergencies time; Wirele sensing technology allows data to be transmitted real time, with strong received signals, no interference, higher stability. The monitor will quickly make an alarm to warn the driver when the tire preure temperature is found to be abnormal.4.[Perfect Quality & Weatherproof]: High-quality materials make TPMS feature high sealing performance, waterproof moisture-proof, can work well all different areas under any climate, such as sunny, rainy, snowy, cloudy bad weather.5.[Real-time Monitoring]: TPMS also provides real-time monitoring of all tire preure and temperature, thus improving fuel efficiency, extending tire life, and ensuring the safety of driver.Features:6.[Automatic]: When the vibrator automatically enters the working state, the driving status shows that it is often on, no need to adjust manually, very worry -free. When the motorcycle stops, the motorcycle monitor will automatically enter the dormant and standby state in a static state.7.[Intelligent design]: adopt a magnetic charging design, adsorb in one second, quickly charge. Compared with the traditional charging socket, the magnetic charging design is waterproof and dustproof, which is convenient for charging.Specifications:Name: Solar Power Tire Preure Monitoring SystemWorking temperature: -30 ~-70 Preure accuracy: 0.1 barTemperature accuracy: 2Sensor transmiion frequency: 433.92 MHzReplaceable battery: Yes (built- 1100mAh lithium battery)Material: ABS + PCWaterproof rating: IPX67 (MonitorYSensors)Product size: about 45*45*22mm/1.77*1.77*0.87inchPacking List:1*Tire Preure Monitoring System for Motorcycle2*Sensor1*Bracket1*USB Charging Cable1*Manual1*Wrench for InstallationNotes:Due to the lighting effects and shooting angles, the color of the item and that shown in the picture might have anuance.Due to manual measurement, there might be a tolerance in the product size.