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For sale : Apollo SL-70 Transponder System P/N: 430-6090-100 with Tray

Dec 31, 2013
Reaction score
Removed working condition from my aircraft for ADSB upgrade. Bench tested and verified for listing. Extremely clean unit with crisp screen and knobs.


Garmin AT SL70 Transponder
SL70 Product Overview
The Small-Footprint Transponder Built Right From The Ground Up.
The Garmin AT SL70 is the smallest, most powerful transponder available,loaded with features and built for years of dependable use. The SL70's high performance Mode A/C transponder is designed for both highly accurate VFR and IFR operation. Features include: user-friendly squawk code display and selection; transponder mode selection for standby, on, altitude; built-in altitude hold; ident button and single-button VFR squawk. At only 1.3" in height,the SL70 fits seamlessly into the SL series stack and works flawlessly with other Garmin AT GPS receivers.