ISpindel PCB mounting bracket

ISpindel is a homemade project of an electronic hydrometer used in the production of homemade beer.

Mounting bracket for ISpindel PCB into a plastic tube. It fits for 41 mm inside diameter (front), and 39 mm (back).

Project page:
http://www.ispindel.de/

PCB details:
https://github.com/cherryphilip74/iSpindel-PCB
https://www.pcbway.com/project/shareproject/ISpindel_PCB_3_2__bugs_fixed_.html