Features: 1.Large Screen: Tire pressure monitoring system, large screen display, compatible with for Android system, easy for you to read tire information. 2.Real Time Monitoring: The USB tire pressure monitoring system is convenient for you to monitor whether the tire leaks, ensuring your driving safety. 3.High Sensitivity: Professional USB TPMS is used for fast and effective sensing, which can send alarm accurately in case of abnormal tire pressure. 4.Including 4 Sensors: This TPMS system includes 4pcs high accuracy sensors, easy to install, equipped with 4 anti theft nuts to prevent the sensor from being stolen. 5.Stable and Practical: Wireless TPMS has long receiving distance and stable signal, support tire position interchange. A variety of tire pressure units are optional. Specification: Item Type: USB Tire Pressure Monitoring System Material: ABS Battery: 4pcs CR1632 button battery 120mAh 3.0V (built in battery) Characteristic: A variety of tire pressure units can be selected Long Receiving Distance and Stable Signal Support Tire Position Interchange Air Pressure Setting Range: 1.0-3.5BA Air Pressure Setting Range: 0.1-18.0BA Temperature Setting Range: 60-110 Working Temperature: -20-80 Storage Temperature: -30-85 Power on Voltage: DC 5V Frequency: 433.92MHz1.00MHZ PackageList: 1 x RV Tire Pressure Monitor 4 x Sensor 1 x USB Flash Drive 4 x Anti Theft Nut 1 x Wrench 1 x Instruction Manual