Every Fi tracker is equipped with a distinctive identifier, which is located on the back. This identifier serves as your pet's unique serial number and will always start with the prefix 'FC' if you have a Series tracker, or 'M1' if you have a Fi Mini.
Locating Your Serial Number in the Fi App
You can also view your tracker's serial number in the Fi App at any time. To locate your serial number:
1. With the Fi App open, tap your profile avatar in the bottom-right corner and then tap the three lines to open your Menu
2. Then, tap into your Pack Settings
3. Once you are in your Pack Settings menu, tap the pet whose tracker serial number you want to view
4. Tap the tracker in your profile
5. Once you are on your tracker's page, tap the information icon in the top right corner of the screen. This icon will open up your tracker's information, including the serial number.