Android IOS BLE TPMS Sensor Car Tire Preure Sensor Car Motorcycle BT 4.0 External Alarm Tyre Monitor Tool Waterproof Universal BLE TPMS product which is designed for smart cellphones and supports cellphone with BT4.0 or above WARNING: 1: Support cellphone with BT 4.0 or above. Do NOT support Cellphone with Wirele lower than 4.0.(Due to the different hardware performance of android phone manufacturers, data transmiion may be delayed, which is a normal phenomenon)2: Product displays by cellphone. During driving, please be careful when viewing tire preure and temperature in cellphone.3: If tire preure accelerates down or up continuously,please stop car and check if there's any problem with the tire.4: This product can read tire preure and temperature, but it cannot avoid sudden accident caused by tire. It's important to use tire with high quality.5: Slightly tire leakage makes tire preure decreases over time is normal. It has nothing to do with this product installation. Outer Sensor Installation: Each sensor has a unique ID code. Please make sure sensor installed on corresponding tire valve.Note: When spin the sensor to tight, please open the APP in cellphone (Choose Auto Pair) and Pre "Search" button at the same time to finish sensor bind shortly.Attention:1) Please follow the mark and install sensor on corresponding tire;2) Please save the installation tools (screws and wench) in car, for installing or un-stalling sensor3) After sensor installation, please check if there's tire leakage. APP Description: Compatible Operating System TPMS supports both Android and iOS, requires wirele BT4.0 or above. APP Installation:Option 1: Scan QR code on card, then download and install;Option 2: Search "BLE TPMS" in APP Store or Google play Store, then download and install.Pairing instructions Recommended Pair: Scan CodeOpen downloaded APP, scan code to pair with corresponding sensor ID to complete pair proce. Then install sensor, wait for it to read data.Note: If unable to read data after installation, the car needs to be driven above 20KM/H for 2-3KM, then data can be approachable. TPMS for Car: TPMS for Motorcycle: