SportDOG Replacement Transmitter for In-Ground Fence SDF-100A Containment Systems Collapses into a size smaller

Collapses into a size smaller than a briefcase

50 boundary flags

and can quickly convert to a regular collar

The upper and lower dishes provide two drinking areas for pets

Gasket seals on each lid to keep food fresh

SportDOG Replacement Transmitter for In-Ground Fence SDF-100A Containment Systems Collapses into a size smallerThe 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