Trig makes the world’s smallest Mode S certified GA transponders. The TT21 Trig compact transponder can fit into to the tightest panel space. This allows other instrumentation or avionics to be accommodated, providing a genuine benefit in any installation.

To order your TT21 contact your Approved Trig Dealer now.

PRODUCT FEATURES

The TT21 is a class 2 transponder and our most popular compact transponder model, with the following features:

Takes minimal panel space, fits in a standard 57mm round instrument hole or smaller compact mount

Comes with integrated altitude encoder

Certified for IFR / VFR flight

Certified class 2 transponder 130 watts nominal output

Manual dimming feature (adjustable backlight)

Low weight – 440g (0.8 lbs)

Low power consumption

1090ES ADS-B Out capable

Free European Minor Change approvals

EASA ETSO and FAA TSO Certification – includes TSO C166b the latest ADS-B standard

Unbeatable value and quality – designed and manufactured in the U.K.

Two year worldwide warranty