Powerful TPMS: TPMS can monitor tire pressure / temperature status in real time, which transmit real-time voice alarm and warning indicator light to remind the driver for driving . 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. Many motorcycle accidents are caused by the flat tire on the road. As a motorcycle owner, the of driving is the first thing. To reduce such accidents, the installation of tire pressure monitoring system (TPMS) is necessary. With the TPMS, keep the tire working within the specified pressure and temperature range at any time to reduce the damage of the tire for safe driving. External sensor: Battery: built-in 140mAh button cell Waterproof grade: IP67 Working temperature: -30 - 80 Storage temperature: -30 - 85 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:As Shown Material:Metal+Plastic Package Contents: 1 x Tire Pressure Temperature Monitoring System Kit Only the above package content, other products are not included. Note: Light reflection 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.