This is a water level sensor holder with a magnetic base, with adjustable height. The sensor itself is supposed to be lowered into a hole of a liquid container. We use it to check for coolant level in a container for a CNC machine when filling up said container. The sensor/switch is connected to a loud siren that starts blaring quite loudly when the coolant level gets too high, so we don't accidently overfill the container (which definitely NEVER happened several times in the past) 

Hardware needed:

1x 52mm PP Liquid Water Level Sensor Horizontal Float Switch (ie. from Aliexpress)
[https://tinyurl.com/5cu7k5mw](https://tinyurl.com/5cu7k5mw)

1x M5x20 Knurled screw
[https://eshop.haberkorn.cz/sk/ryhovana-skrutka-vysoka-din-464.html](https://eshop.haberkorn.cz/sk/ryhovana-skrutka-vysoka-din-464.html)

1x DIN EN ISO 4762 - M6x20
1x DIN EN ISO 4032 - M6
1x DIN EN ISO 4032 - M5
4x Neodymium button magnet 8x3 mm

Printing:

Printed in PETG, 0.20 layer height, support is needed only for the M6 hole on the adjustement rail. Print in the orientation of the .stl files.