Features: Our tire pressure monitor uses advanced smart chips to make data more accurate and timely, and to prevent emergencies in time. Real-time monitoring of tire pressure and temperature, improve fuel efficiency, extend tire life, and ensure driver safety. Super large solar panel with extremely long cell life. Made of high-quality materials, have the advantages of high sealing performance, waterproof and moisture-proof, and can work well in all different areas under any climate. Universally applicable to two-wheeled vehicles, such as motorcycles, bicycles, electric vehicles and other two-wheeled vehicles. Specifications: Host Working voltage:3.7V-5V Storage temperature:-30°-90° Working temperature:-20°-80° Display method:LCD External sensor Battery life:24 months, replaceable Sensor pressure range:0-3.5BAR Working temperature:-30~80 Storage temperature:-35~85° Frequency:433.92MHz Waterproof rate:IP67 Pressure range:0-8Bar Transmission power<10 dbm Transmission frequency:433.92MHZ Package size:19*11.5*8.5cm Package weight:263g Package list: 1*Host 2*External sensor 1*USB cable