When you call Double U with a broken Garmin item, the first thing we'll ask for is its serial number. Using this, we can check the item's purchase date and warranty status, or if out of warranty give a customer discount if the item was purchased from us. On Alpha handhelds, this will be located under the battery. The serial numbers on Alpha 200i units will begin with "6EA" and Alpha 100 units will start with "2PV" or "3YU". DriveTrack units will have the serial number under the mount clip on the back.
As for collars, you can find the serial located under the collar strap on top of the battery box. Simply feed the collar strap back as if you are removing it, and your serial number should be next to a small scan code. We can currently only swap out the T5/TT15 model of tracking collars, as models such as the DC50 and TT10 have been discontinued by Garmin, and therefore cannot be replaced.
Some users prefer using a particular model of discontinued device such as the Astro 220, Astro 320, or the DC30, DC40, or DC50 tracking collars, or have an older system and do not wish to upgrade. These devices can only be replaced by purchasing used Garmin systems.
Garmin TT15 and T5 serial numbers will start with "3s4" and "3s6" respectively. TT10s are easily identifiable with "2PU" serial numbers, however when dealing with a large mix of TT15s and TT10 collars, you can always check the "FCC ID" or Federal Communications Commission ID on the smaller GPS box. Handily, TT15 collars will end in "15" whereas TT10 collars end in "97", making them easily identifiable.
The serial number is essential for us to process service repairs and replacements. If you have a broken collar or handheld with issues, get your unit's serial number and make the call to DU right away to get it handled as quickly as possible so you can keep the equipment tracking your dogs working functionally.