Hygrometer Holder for Sterilite Dry Box

Attention: Version 2 is up and is a tidier solution in many ways. It looks almost the same but uses less plastic and can be a "permanent" install (i.e., you can change the battery without snipping the cable tie).

New version is here:
https://www.thingiverse.com/thing:3402092

Original text below this line
____________________
This is part of my solution to a simple and low maintenance dry box.

I designed this to hold a hygrometer to the lid of a Sterilite 20 Quart Gasket box. I’m usin