Garmin GAP-26 Un-Heated Pitot Tube with AOA.
The GAP 26 pitot/AOA probe is available in three versions: unheated, non-regulated heated, and fully-regulated heated. The latter two are heated probes. For both heated versions, the pilot throws a switch to turn the heat on.
For GAP 26 installation instructions please refer to the corresponding section of Garmin G3X installation manual.