1. new magnetic attraction charging design.2. Realtotime display of highly tire temperature and pressure data of 2 wheels at the time3. Extend tire life, balance tire pressure, the safety of motorcycles4. TPMS dedicated radio frequency technology, the sensor realtotime updates data, alarm when tire pressure and temperature are abnormal5. High standard to dusttoproof,waterproof and high temperature proof.[Magnetic Attraction Charging]Very convenient magnetic attraction charging design.[Intelligent AI Chip] leakage alarm,Low pressure alarm,High voltage alarm,Low battery alarm,High temperature alarm.Sensor:Operating frequency: 433.92MHz 15MHzOperating voltage: 2.1to3.3VOperating temp.: to40 to and105CelsiusPressure range: 0to8Bar or 0to116PSISensor size: 23mm x 15mm () or 18mm x 13mm(WI)Display:Operating frequency: 433.9215MHzBattery Type: Build on with lithium battery USB line for chargingDisplay size :48mmx48mmx27mmColour:blackMaterial:ABSPackage Contents:1 x Display2 x Sensor1 x Bracket1 x Spanner2 x Anti theft nut1 x USB cable1 x English manualOnly the above package content, other products are not included.Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is 1to3cm.