Loop Harness - TT 21/41/51/200

This loop harness is used to connect a single loop to the following single loop counters: TT-14, TT-21, TT-41, TT-51, & TT-200.

Typical installation will have each end of the existing or new loop connected to the Green & White wires. If the counter is equipped, the Red and Black will provide a 12v DC external trigger.