Michael:
Quim43:Is it this?
Are these boxes designed to enclose the eye within or are they for mounting the eye on top of? My guess is it's inside but it's difficult to tell in the picture.
Certainly inside. Look like quite normal run-of-the-mill IP65 classified ABS enclosures to me, nothing B&O specific. Less than 20 euros at a well-stocked electrical hardware store...
There might be a catch in how well the transparent lid will pass IR light, I never tried 