customizable hygrometer holder for filament spools_V3

Customizable holder Version 3 for a hygrometer device. I store my filament in a airtight box - EVO TOTAL PROTECTION by rotho - with dehumidifiers. I wanted to know when to regenerate the dehumidifiers. I tried to glue the hygrometer, but it did not hold very well.
This version fits better for spools with a continuous cylinder.

Happy printing. Keep your filament dry.