On-Spool Humidity Meter Holder

Here is another gadget for those who store the filament spools in individual vacuum bags.
With this one you can easily monitor the humidity level in the bag while sealed and under vacuum.
This humidity meter holder is designed for this type of meter:
https://www.ebay.com/itm/166274583042?var=465893654211

The holder also has a dedicated cage for the humidity absorbing material/bag and optional path in the front for threading the filament end so making its color visible.