Water flow sensor

I thought you had a CW5200 chiller?

If so, the chiller is much smarter than that switch and will detect and stop the machine if not only there is a flow problem but it the coolant is too hot or cold…

I’d just wire it up to the chiller… IMHO… I think you are more than capable…

The switch should work… How it works internally I don’t know… this is the same thing, just doesn’t look as nice…

https://www.amazon.com/uxcell-DC130V-1-2-12L-Magnetic-Flowmeter/dp/B07DM228ZH/

This guy made one from parts…

I still say if you have a good chiller, use that…

Good luck

:smile_cat: