Garmin is on the CFI animal use list due to its sale of electric dog collars for anti-barking training tools, as well as devices for sport dogs to aid in hunting and devices for “fish-finding”.
From their website:
Garmin STRIKER™ fishfinders include built-in GPS plus CHIRP sonar and CHIRP scanning sonar capability. Now you not only have a better way to find fish, you can also mark the spots to return to later. Plus, you can mark boat ramps and docks so you can find your way back to where you started.
Build a better dog with devices for tracking and training. From obedience to hunting and limiting nuisance barking, get exactly what you need to make life with your hunting buddy that much better.
Garmin offers products in the marine, aviation, automotive and outdoor/fitness markets. http://www.garmin.com