King KT 79 transponder in good working condition and nice cosmetics for its age. No tray or connector included. Tray and connector listed separately (I can refund shipping on tray if you order both items within one hour of each other). Has old yellow tag from 1991. Can be returned within 30 days if not satisfied.

*This item is guaranteed to be fully functional when received, but airworthiness is a separate matter determined only by the certified technician performing installation and is the responsibility of the buyer.*