Descriptions:Tire Preure Monitoring System is mainly used for real-time monitoring and alarming of information such as low tire preure, high tire preure, rapid air leakage, high tire temperature and low battery voltage during car driving. The driver's effective information to maintain sufficient tire preure, prevent the occurrence of puncture accidents, increase the safety of driving the car, reduce the extra oil generated by the tire tire preure, and extend the life of the tire.The direct tire preure monitoring system is equipped with a high-sensitivity sensor in each tire, which can monitor the preure and temperature of the tire in real time. After digital-to-analog conversion, the data is transmitted by radio signals to the display mounted on the bridge. Values and temperature values are displayed visually immediately. If the tire preure is too high or too low during driving, the tire will leak due to any reason (such as foreign matter piercing the tire, tire scratching...), and the system will automatically alarm immediately to ensure safe driving.The TPMS wirele tire preure monitor uses the world's top line sensor chipset and has multiple wirele communication technologies, eliminating the need for additional repeaters. When the car is driving at high speed, the signal reception is accurate and can reflect the tire preure condition most realistically and intuitively. It is currently advanced in technology and stable in performance.Features:- High efficiency solar panel, super long battery time- Large capacity built-in lithium battery, long battery life even in cloudy days- Fully accurate monitoring of tire preure- High precision LCD display- Large volume alarm sound alert- Multiple tire preure units are available- Long distance receiving distance, stable signalSpecifications:Sensor type: externalAir preure setting range: 0.1~4.2.BARTemperature setting range: 60 C ~ 90 CWorking temperature: -20 C ~ 80 CStorage temperature: -30 C ~ 85 CPower supply voltage: DC 5VFrequency: 433.9200MHz 0.1MHzHost size: 94*84*26.5mm/3.70*3.31*1.04"Host weight: 60gSensor weight: 40gNotes:1. There may be slight size deviations due to manual measurement, different measuring methods and tools.2. The picture may not reflect the actual color of the item because of different pographing light, angle and display monitor. 1 X Host 1 X Bracket 4 X External Sensors 1 X USB Cable 1 X Installation Kit 1 X Sticker 1 X Manual