Powerful TPMS: TPMS can monitor tire pressure / temperature status in real time, which will transmit real-time voice alarm and warning indicator light to remind the driver for driving safety. Wide compatibility: This system is widely compatible with those motorcycles with 2 tires. You don't have to worry about the compatibility issue. Power supply: Supports USB charging, which means that you could use the USB cable (not included) to charge it up while it is in low power, rather convenient. 2 external sensors: Its 2 external sensors with IP67 waterproof grade are suitable for being used on . Besides, they are in high sensitivity and good accuracy for measuring pressure and temperature. : External sensor: Battery: built-in 140mAh button cell Waterproof grade: IP67 Working temperature: -30 - 80 .C Storage temperature: -30 - 85 .C TPMS: Battery: built-in 345mAh Li-ion battery Operating voltage: 3V Working frequency: 2.4GHz Response time: 6s Working humidity: 95 percent and less Pressure monitoring range: 100 - 900 kPa Pressure accuracy: minus or plus 10 kPa Colour: black Material: ABS Package Contents: 1 * display 2 * external sensors 1 * fixer 1 * USB power cable 1 * battery key 2 * anti nut 1 * wrench Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.