I have a used but in great shape TriTronics Pro 200 for sale, The battery in the collar is brand new and was just changed. Included are chargers for both the transmitter and the collar plus the carrying case. I'm asking $250 o.b.o. PM me if you're interested.
http://i251.photobucket.com/albums/gg282/matchbook454/Tritronics/TriTronicsPro200005.jpg
http://i251.photobucket.com/albums/gg282/matchbook454/Tritronics/TriTronicsPro200003.jpg