Hi, up for auction is a  GARMIN GTX-327 TRANSPONDER  . It´s in excellent working condition, looks good and was only removed from the aircraft for an avionics upgrade. The display is clear and bright with no missing digits ( see 2nd picture ).  
I guarantee this item for 30 days after auction end. If your not happy with it for any reason you can return it within 30 days of auction end for a full refund ( as long as the "void if broken" seals are still intact).