This motion sensor is a great part, except that I had a few extra wires to join. I could have made it work (maybe?) but this is the least forgiving electrical box I've ever seen. Very small volume and tight tolerances; you might break it trying to force it together.

I'll use surface-mounted silicone wires and hot glue to seal it, and run the wires in the sides and out the bottom, but that's an indoors application. For outdoors I would drill it out a bit and use some narrow conduit rather than leave the wires exposed, although silicone wires should hold up to the sun. Anyway, I'll be impressed if anyone else ever uses it XD

If you want outdoors version I have some ideas! PLA should be sprayed with anti-UV paint (and plastic primer to bond) for outdoors use (jmo)