Feature 1、Wireless Smart TPMS: The smart TPMS can be used to monitor the pressure and temperature of the tires. 2、Real Time Alarm: Transmit real time audible alarm and visual warning to remind the driver to pay attention to driving safety. 3、Intelligent Sleep Mode: The tire pressure monitoring system has an intelligent sleep mode, which can effectively save power. 4、4 Internal Sensors: Built in 4 sensors, the tire pressure and temperature data of the 4 tires are clear at a glance. 5、Selectable Pressure Unit: Fixed rod, Psi pressure unit and fixed temperature unit for selection, meet your different needs. Item Type: Tire Pressure Monitoring System Material: ABS Sensor Voltage: 2.0-3.6V Monitor Voltage: 12-24V Working Frequency: 433.9200MHz±0.1MHz Working Voltage: 5V Sensor Working Current (Quiescent): ≤1uA Sensor Working Current (Dynamic): ≤15mA Monitor Working Current (Quiescent): ≤0uA Monitor Working Current (Dynamic): ≤30mA Sensor Working Temperature: -40℃-+125℃ Display Working Temperature: -40℃-+70℃ Pressure Detection Range: 0~72.5psi, 0~5 bar Charging: Cigarette lighter socket charging Internal Sensor Battery: CR2050 button battery (built-in) Battery Capacity: 300mAh Battery Lifespan: 5 years Application: Suitable for general vehicles such as minibuses, pickup trucks, SUVs, and cars. Functions and Features: 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. Datas of 4 Tire pressure and temperature are clear at a glance 6. Fixed rod or PSI pressure unit for choice 7. Fixed temperature unit for selection (This product 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 product.) Package List 1 x Tire Pressure Monitor 4 x Nozzle 4 x Sensor 4 x Screw 4 x Gasket 1 x Manual