Fi 3+ Behavior Adapter

Mount your Fi 3+ module directly onto your dog's existing collar — no second collar required. The Fi 3+ Behavior Adapter secures the module at two snap points, keeping it positioned correctly so the accelerometer can do its job. That means you get full Fi 3+ data — behavior tracking, GPS, and geofence — all from the collar your dog is already wearing. Fits 1", 1.5", and 2" collars. Designed for collars only — for GPS and geofence on a harness, see the Fi 3+ Compact Adapter. Handcrafted in Alaska with marine-grade hardware and polyester webbing.