The SportDog Dog Fence Transmitter is for the SportDog Dog Fence Model SDF-100. If you need to replace your SportDog Dog Fence Transmitter the part number for this dog fence transmitter (found on the back) is RF-104-S. Includes Transmitter and AC Power Supply. On June 7, 2010 the look of the SportDog Transmitter was changed. This new transmitter will work with all SportDog Underground Dog Fences.
Posted by Becky on Mar 6th 2012
I really love my new fence transmitter. I like the sleeker design. I had to replace an old RF-104 model. Tried other fencers and finally bought this one. I have not bought any since I purchased this one. Finally, I feel secure that my dogs will stay in their yard. Also, another nice feature is the expansion size I can go to if I want to in the future.