Orange Aero Engineering - Latest Garmin install includes a GTX345 ADSB IN-OUT transponder. When you connect an aera 660 to a GTX 345,it uses this information to provide pitch/roll/slip-skid data on the
Garmin GTX345 Mode S Transponder w/ADS-B In/Out Installed – Lafayette Avionics, Inc.
Garmin GTX 335D Panel-mount Diversity Transponder with ADS-B “Out”
Garmin GTX 345 ADS-B Transponder - Plane & Pilot Magazine
Garmin GTX™ 345 | ADS-B In/Out Transponder
Garmin ADS-B transponders approved for 60 helos - AOPA
Garmin GTX345 Digital Transponder For Experimental Aircraft | Aircraft Spruce