The TC90 Controller Kit (EDMO# 01454-00) contains a TC90 control head, installation kit, and operating manuals. This is a retrofit kit designed for use in installations of a second TC90 to an existing TY91/TY92 radio and TC90 control head in order to create a dual control setup.*Please note, to access dual control functionality, both control heads must have software updated to version 1.4 or later
