Features: The mainly function is to monitor tire internal pressure and allow you know the tire condition. This is non-OEM product! Specification: OE Number: 5L1Z-1A150-AB, 5L1Z1A150AB, 5L7T-1A150-AB, 5L7T1A150AB, 5L1Z-1A150-AA, 5L1Z-1A150AC Color: Blue Material: Plastic, Metal, Rubber Frequency: 315MHz Thread Diameter: M8x0.8 Size: 7.2x3.8x2.5cm / 2.83''x1.5''x0.98''(L*W*H) Fitment: for Lincoln Navigator 2005-2006 for Ford Expedition 2005-2006 Package Included:1 x Tire Pressure SensorHow to Install and Use: Step 1: Remove the tire and the tire pressure sensor/valve; (the whole tire needs to be removed) Step 2: Install the newly purchased product; Step 3: After the product is installed, please stop the vehicle and turn off the engine for about 20 minutes, and keep the remote control key 5 meters away from the vehicle; Step 4: Start the vehicle and keep the vehicle running at a speed of more than 25 km/h for 5 to 10 minutes, then the product should be matched; Step 5: If the temperature is low, such as, below 0°C, the matching time may be longer, which is normal, please wait patiently for the matching. If you still have problems, please .