BLE TPMS product which is designed for smart cellphones and supports cellphone with Blue-tooth 4.0 or above. Type: Digital, Car Fitment: Universal, Voltage: DC 5V/1A, Product name: Tire Pressure Monitoring System (TPMS), Transimitting power: 8dbm, Tire Pressure Detection Range: 100-1300kPa, Battery life time: 3-5 Years, Sensor type: External 4 Sensors, Working Temperature: -30 ° C ~ 85 ° C, temperature resolution: ±3?(25?), Transimitting Frequency: 2.4GHz, waterproof grade: IP67. The BLE external sensor is directly installed on the tire nozzle. When the sensor collects the pressure and temperature data in the tire, it will be sent to the display device through BLE. Download and install the app, which can display tire temperature, tire pressure, air leakage display, low power display, voice, setting, binding sensor, tire replacement, help and other functions. Support cellphone with Blue-tooth 4.0 or above. Do NOT support Cellphone with Blue-tooth lower than 4.0.(Due to the different hardware performance of android phone manufacturers, data transmission may be delayed, which is a normal phenomenon). TPMS BLE version 4.0 TPMS external sensor. The sensor can be directly connected to cellphone and other devices with wireless reception function. High stability and strong anti-interference ability. The air pressure and temperature are measured and monitored at the same time. Temperature measurement range -40??125? , temperature measurement accuracy ±3?, Tire Pressure Detection Range: 100-1300kPa, Tire Pressure Detection Accuracy: ± 10kPa. BLE operating frequency 2.4 GHz, pressure measurement range 0-8bar(0?116Psi), working voltage 3V, standby current ?2.2 uA, emission current ?5mA.