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Add a second dog to your Dogtra eF-3500 containment system
The Dogtra eF-3500 underground fence system supports an unlimited number of dogs off the same wall-mounted transmitter and boundary wire. This extra collar receiver is the same unit that ships with the base system — same vibration pager warning before any static correction, same 8 adjustable correction levels, same fully waterproof 2-hour rapid-charge collar.
Each collar is programmed independently, so a dog that needs level 2 and one that needs level 6 can run the same fence simultaneously without any adjustments between dogs. The vibration pager gives every dog a non-static warning before any correction fires — so the fence is doing conditioning work, not just punishing boundary crossings.
eF-3500 only: This receiver (GVDS# eF3500RX) is compatible exclusively with the Dogtra eF-3500 system. It will not work with other Dogtra fence or training collar systems.
Specs & features
| Compatible system | Dogtra eF-3500 underground fence only |
| Warning system | High Performance Pager vibration before static correction |
| Correction levels | 8 static levels plus vibration-only mode |
| Power range | Low to medium |
| Battery | Rechargeable lithium polymer, 2-hour rapid charge |
| Water resistance | Fully waterproof |
