The TT31 mechanically replaces the KT-76A with minimal wiring and directly replaces the KT-78A; it fits in the same mounting tray as the KT-76A/78A transponder.

The 00225-00 is a complete kit that includes the mounting tray and install kit.

• European Mode S
• Low Power Consumption
• No Cavity Tube
• 240 Watts Nominal Output
• Plug and Play Installation
• Backlit LCD Display
• Easy to Use Rotary Knobs
• Timer/Stopwatch Function
• Altitude Monitor
• Certified 1090ES ADS-B out

The TT31 is TSO approved for fitting to European and FAA registered aircraft. With a software upgrade and a connection to an appropriate GPS, this will make the TT31 compliant with the FAA final rule on ADS-B Out for 2020.