I have both systems and like them both. They both work on the same principal and are virtually the same thing, the main difference being the transmitter that the mare wears. The Equipage transmitter fits horizontal on the mares' halter under her jaws while the Breeder Alert transmitter fits more vertical. What I have found is that there seems to be fewer false alarms with the Equipage as the mares' don't seem to catch the transmitter on buckets and feeders as they do with the Breeder Alert transmitter.