Wireless Motorcycle TPMS Tire Tyre Pressure Monitor System + 2 External Sensors Feature: Real-time Monitoring Data, Synchronous Display: Contains precision wireless transmission sensor, and gives the accurate reading. Whenever abnormalities in the tire pressure or temperature are discovered, the monitor will quickly send out an audiovisual alarm to warn the driver. Waterproof & Dustproof Wireless Display Design: Waterproof and dustproof, the TPMS can meet all the different regions in any climate such as sunny rainy snowy cloudy harsh day. Durable Life and Strong Power Battery: Bulid-in lithium battery to get electricity, Magnetic USB charging, no wires connection. With LCD panel and 2 external high sensitivity and accuracy sensors. Necessary Alarm System for Motorcycle: Dynamically monitors all tire pressure and temperature, PSI, BAR two kinds of pressure unit optional, ℃ and ℉ two kinds of temperature unit optional, improves fuel efficiency, and prolongs tire life and ensures driver safety. Suitable for Two-wheeled Motorcycles: Suitable for all kinds of two-wheeled motor vehicles. How To Use? 1.When installing the tire sensor, it is necessary to tum on the main engine to receive the signal. No signal after installation: 2.Keep the main engine on and install the tire sensor1-2 times repeatedly. No signal after installation: 3.Repeat 1-2 pairing operations( there is a tutorial in the manual). Specification: Material:ABS + PC Color:black Voltage:3.7-5V Built-in lithium battery capacity 720mAh Host Battery Endurance 2h use per day x 25days Battery life 2 years (1-2 hours per day, this is the normal commuting time) Working temperature - 20 ℃ ~ +80 ℃ Storage temperature - 30 ℃ ~ + 85 ℃ Receiving frequency 433.92MHz ± 50.00MHz Detection Pressure Range 0 ~ 5.0bar Package Included: 1*Host Display 2 *Sensor 2* Anti theft nut 1*USB Charging Cable 1*Bracket 1*Spanner