Feature 1、Function: TPMS will monitor the tire pressure and temperature status in real time. The four tires data are clear at a glance. 2、Sleep Mode: The smart sleep mode is designed to save power and provide longer battery life. 3、Multiple Warnings: Tire leak alarm, audible alarm and visual alarm remind the driver to pay attention to driving safety. 4、Optional Unit: Fixed rod, Psi pressure unit and fixed temperature unit are optional, really practical. 5、Premium Material: With the use of high quality ABS material, heat resistant, can deal with harsh environment. Item Type: Car Tire Pressure Monitor System Material: ABS Type: Number Battery Model: CR2050 (built in) Battery Capacity: 300mAh Working Frequency: 433.9200MHz Working Current (Quiescent Current): ≤30uA Working Current (Dynamic Current): ≤8mA Working Temperature: -40℃-+70℃ Pressure Detection Range: 0-72.5 Psi, 0-5 Bar Charging: Cigarette Lighter Socket Charging Battery Life: 4 external sensor (built in) : 5 years Functions and Characteristic: 1. Real time monitoring of tire pressure and temperature. 2. Smart sleep mode, save power. 3. Tire leak warning 4. Visual and audible warnings for abnormal tire pressure and temperature 5. 4 Tires pressure and temperature data are clear at a glance 6. Fixed rod or Psi pressure unit for selection 7. Fixed temperature unit for selection Package List 1 x Monitoring System Screen 4 x Sensor 4 x Screw 4 x Gasket 4 x Bracket 1 x Manual Note This TPMS can monitor tire pressure and temperature in real time and issue warnings. However, accidents cannot be prevented, so we are not responsible for direct or indirect losses caused by damage to this TPMS