The Tri-Tronics 9V Replacement Battery fits the following systems:
Sport Basic G3, Sport Combo G3, Sport Upland G3, and Junior transmitters (one required).
Fits Beeper (one required), Sportsman transmitter (two required), Companion transmitters (one required).
Sport® 50S, 60S, 65 BPR models and Multi-Sport® 2S and 3S transmitter (one required).