listing placed 24 November 2025 United Kingdom

TRIG TT31 mode S Transponder + wiring & mounting tray £1700

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TT31 Mode S transponder £1700
Good fully working condition. Removed from exported touring motor glider. EASA Form 1's. Transponder has a wiring harness and also comes with a mounting tray and an ACK A-30 altitude encoder. All for only £1700 and free UK mainland postage.

See the spec for the TT31 here on this link: https://www.gps.co.uk/product/trig-tt31-mode-s-transponder-complete/

See the spec for the ACK encoder here: https://www.gps.co.uk/product/ack-a30-mod-9/

Any questions (non technical) please msg me.