Features: Brand new and high quality. Real-time tire preure and temperature monitoring with LCD displaying. Quick air leakage alarming, to prevent tire burst and extend the tire's life. Independent sensor ID number, directly install and use. Supports alarming value range setting. Supports tire position exchange function. TPMS profeional technology, to transmit more accurate data. Both solor and USB charging are available. Specifications: External Sensor: Working Temperature: -20~80 Storage Temperature:-30~85 Emiion Frequency: 433.92MHZ20MHZ Emiion Power: Battery: button battery, independent replacement Battery life:1-2 years Sensor preure monitoring range: 0.1-6Bar Preure accuracy: 0.1Bar (1.5Psi) Display: Display: LCD screen Battery: Built-in Li-ion Battery Working Temperature: -20~80 Storage Temperature:-30~85 Working Voltage: 5V Emiion Frequency: 433.92MHZ20MHZ Package Included: 1 set x Motorcycle Tyre Preure Monitoring System