This TPMS is designed for smart cellphones and supports cellphone with BT 4.0 or above. Once this BT tire sensor installed in tyre,tire pressure and temperature can be displayed in cellphone with APP. During travel, tire pressure and temperature displayed in realtime and send alert when statistics' abnormal. For your safety, you can't miss this TPMS. Features: Real time detection of tire pressure and tire temperature, to ensure driving safety. Accurately provides 2 tires' pressure and temperature data all at once. Support cellphone with BT 4.0 or above, compatible for IOS / Android. Comes with 2 tire pressure sensors, coupled with anti-theft nut, do not need to worry about the sensor will dumping fly. Wireless transmission design via BT, and no wires connection is needed.Specification: Processor: ARM M0 Working Voltage: 3V Working Current: 100A Standby Current: 2.2A Bluetooth Working Frequency: 2.4GHz Bluetooth Transmitting Power: 0dBm MAX Wait Time: 5s Display: Phone APP Waterproof Standard: IP67 Working Humidity: 95% MAX Tire Pressure Detection Range: 100-1300kPa Tire Pressure Detection Accuracy: 10kPa Tire Temperature Detection Accuracy: 3 Working Temperature: -30 ~ +80 Storage Temperature: -30 ~ +85 Battery Capacity: 140mAh Battery Life: 3~5 Years Note: TPMS supports both Android and iOS, requires BT 4.0 or above Package List: 2 * Tire Sensors 2 * Nuts 1 * Wrench 1 * User Manual