The ACK A30 is the smallest, lightest, highest quality, most cost-effective Mode C altitude encoder available. High reliability solid state electronics. Quick, easy installation - generally less than one hour. Compatible with most transponders in use today. Code compatible with all classes of mode S transponders. Reports altitude to 30,750 ft.

Comes with: Quick release mounting tray, 4 ft. color coded wiring harness with pre-wired jack, static line, fittings, installation manual. 3-year warranty from date of manufacture. 2 Lbs.