Trig Avionics wiring harness for TT21/TT22compact transponders, light-sport, experimental and homebuilt aircraft

Trig harnesses have been thoroughly tested and quality controlled to ensure a reliable, faster, and easier installation.

These wiring harnesses are intended for use with Trig TT21/TT22 compact transponders, with the possibility of connecting a TN72 GPOS source.

Both the short (1 m) and long (3 m) harnesses are the same.

Trig Avionics products are easy to use, truly creative, and give pilots with features that are vital to them. A wide range of EASA and FAA approvals are available and are utilized every day by pilots to get airborne – lowering compliance costs.