That's an interesting device! Where does it get its Mode-C static pressure data from?
A trig equivalent is a bit cheaper (assuming you're happy to use the original tail lamp) if you were starting from scratch:
Trig TT22 based bundle (including gps) is $2759 https://www.aircraftspruce.com/catalog/ ... -16299.php
TailBeaconX is $3194 (including head unit) https://uavionix.com/product/tailbeaconx-experimental/
(using USA prices for equivalence purposes).
but I guess you also get the added functionality on the head unit.
I assume it has some level of certification at the moment (even if not TSOed) - my understanding is that the radio standards need certified to (even if the installation doesn't need to be for PtoF aircraft) in the EU (and UK).