SportDOG Replacement Transmitter for In-Ground Fence SDF-100A Containment Systems Veterinarians prefer the softness of

Veterinarians prefer the softness of the Comfort Contacts to help reduce the incidence of skin irritations

Dimensions: 48" x 48" x 12"

Collapses into a size smaller than a briefcase

Add an unlimited number of pets to your YardMax in-ground system with this extra receiver collar

Creative paw print with bone design

SportDOG Replacement Transmitter for In-Ground Fence SDF-100A Containment Systems Veterinarians prefer the softness ofThe transmitter is powerful enough to cover up to 100 acres of land. Add an unlimited number of dogs with the purchase of additional Add A Dog Collar Receivers. Features: Wire Break Transmitter alarm alerts you to possible problems with boundary wire Built In Lightning Protection Only compatible with the SDF 100A