Summary

This bracket is designed to slip onto the provided USB wall wart adapter, and then have the sensor base slot into the top of the bracket.

There are 4 versions. One for outlets in a standard orientation, and a second for outlet boxes that are turned 90 degrees.

The power plugs that were shipped come in two sizes.
The older plug (early 2024 time frame) measure 36mm x 24mm
The new plugs (shipped in2025) measure 39mm x 22mm

I stamped "New" and "Old" on the models to aid in identification.