This wall-mount transmitter acts as a replacement for your existing SDF-100A or SDF-CT containment system. Or to create your own "Contain & Train" system, simply add this wall-mount transmitter to your existing compatible SportDOG remote training transmitter. Just add the SDF-CTR collar along with wire and flags. Compatible With
In-Ground Fence system (SDF-100A)
In-Ground Fence Add-A-Dog® collar (SDF-R)
Contain + Train system (SDF-CT)
Contain + Train Add-A-Dog collar (SDF-CTR)