Product Features:1. Powered by USB cable,2 external r2. Built-in high temperature resistant explosion-proof battery,fast charging, lasting power3. Real-time display of highly accurate tire temperature and preure data of 2 wheels at the same time4. Quickly detect leak and alarm, extend tire life, bace tire preure, ensure the safety of motorcycles5.PSI, BAR two kinds of preure unit optional, ℃ and ℉ two kinds of temperature unit optional6. Each r has a separate ID code, which has been completed before delivery, can be directly d ar installation7. TPMS dedicated radio frequency technology, the r real-time updates data, alarm when tire preure and temperature are abnormal8. TPMS dedicated Freescale program, 6-in-1, es the signal more stable and reliable, ing data more accurate to ensure ffic safetyDisplay :Size: about 48 * 48 * 27MM/1.89 * 1.89 * 1.06inWeight: about 50GBuilt-in battery capacity: 850 mAhWorking temperature: (- 20 ℃ ~ +80 ℃)Storage temperature: (- 30 ℃ ~ + 85 ℃)Receiving frequency: 433.92MHzr :Working temperature: (- 40 ℃ ~ + ℃)Storage temperature: (- 40 ℃ ~ + 120 ℃)Preure range: 0 ~ 116psi (0 ~ 8bar)Preure accuracy: ± 0.15PSI (± 0.01bar)Temperature accuracy: ± 3 ℃nsmiion frequency: 433.92MHzBattery life: about 2 yearsSize(approx.): Height: 13mm/0.51in, Diameter: 18mm/0.71inWeight: about 6.0gPackage included:Receiver *1r *2