Very simple mount to fit the inexpensive hydrometers into the Thomann ABS guitar cases.

I have made one for the ST/T style case and one for the P/J case.

I bought some cheap hygrometers from Amazon and made the mount to fit. I have large humidity swings where I live, and wanted to keep track of storage conditions.  

Considerations:
- Made sure there is enough air flow so the sensor can work as intended
- Space left underneath so you can still store something small (do not block the sensor holes!)
- Quick, easy print - set it and forget it. 
- Easy access to the actual unit to change batteries or remove it. 

PLEASE NOTE
- The thomann cases have varying tolerances compared to the drawings on the listing on their website. 
- Cheap hygrometers vary in size, adapt yours to fit. (STEP file available for modification)

Let me know if there are any major issues!