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2.808,00 EUR
19 % VAT incl. excl. Shipping costs
Shipping time: 3 Weeks
Product no.: 24-113150
Weight: 0.90 Kg.

TT21 - Class 2 – Mode S and 1090ES ADS-B Out transponder


Trig makes the world’s smallest and lightest 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.

The TT21 is a high powered performer, a Class 2 transponder – ideal for use in aircraft flying up to 15,000 feet and hot faster than 175 knots. It is also suitable for ADS-B, where a Class 2 transponder is required (within the U.S. for example). A free FAA STC allows the TT21 to be installed as a compliant ADS-B Out solution in 576 aircraft types. The TT21 is compatible with many popular GPS position sources including Garmin GNS and GTN navigators and the Trig TN70 – for further information see our U.S. ADS-B page.

 Product features

  • Compact size – takes minimal panel space, fits in a standard 57mm instrument hole
  • Integrated altitude encoder
  • Certified for IFR / VFR flight
  • Certified class 1 transponder 250 watts nominal output
  • Manual dimming feature (adjustable backlight)
  • Low weight – 440g (0.8 lbs)
  • Low power consumption
  • 1090ES ADS-B Out capable
  • EASA ETSO and FAA TSO Certification – includes TSO C166b the latest ADS-B standard
  • Free European Minor Change approvals
  • Free FAA ADS-B STC for 576 aircraft types
  • Unbeatable value and quality – designed and manufactured in the U.K.
  • Two year worldwide warranty


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