Hygrometer mount for filament box

I installed a humidity sensor in my filament boxes (see [here](https://www.banggood.com/DANIU-Mini-LCD-Digital-Thermometer-Hygrometer-Fridge-Freezer-Tester-Temperature-Humidity-Meter-Detector-p-1047885.html?rmmds=myorder&cur_warehouse=CN) )

Mounts on the inside of the box. I use those 22 liters IKEA SAMLA boxes for that purpose.
Printing is straightforward. I mounted them with 4mm selftapping screws.