The tire pressure system is practical for motorcycle to monitor its tire pressure and temperature status in real time, and w-irelessly transmit alarm and prompt, accurate and quickly. It is widely compatible with motorcycles, waterproof, can improve your riding safety. Features: Can monitor the tire pressure and temperature status in real time, which will transmit the real time voice alarm and warning indicator light to remind the driver for driving safety. This system is broadly compatible with those 2-tire motorcycles. You need not worry about the compatibility issue. It supports usb charge, quite convenient. 2 external sensors, suitable for use on rainy days. High sensitivity and well accuracy for measuring pressure and temperature. Can be used for one week under normal full charge. Specifications: Material: PVC Air Pressure Setting Range: 0.16.0ba Temperature Setting Range: 60110 Working Temperature: -2080 Storage Temperature: -3085 Power on Voltage: DC 5V Frequency: 433.92mhz 20.00mhz Cell: Host: Polymer cell, 3.5V 1100mAh Sensor: 1632 cell, 3.3V (included) Air Pressure Monitoring Range: 0.56.2Bar Valve Model: M4 External Thread: 8V1 / 10V2 Internal Thread: 5V1 Item Size: 53 * 53 * 34mm / 2.09 * 2.09 * 1.34in Package Weight: 230g / 8.11ounces Package Size: 180 * 130 * 45mm / 7.09 * 5.12 * 1.77in Package List: 1 * Host 2 * Sensor 1 * Bracket 1 * Spanner 2 * Anti-theft Nut 1 * Charge Cable