Peter, your Maxtrac and Extender module

[Will]

Peter, your five pin Maxtrac, with the modifications and connector, and your new extender module are on the way to you at the Fire department. I has the disable switch and all the fail safe circuits and the guys at the shop loved how well it worked. Even the local fire dept got a dose of it as the maxtrac is on the same frequency (different PL tho).
Plug and play.