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…
I will have later this week. Kept waiting for the price to come down.
[OMTech 6L CW-5200 Industrial Water Chiller for 60-150W CO2 Laser Engrave…
The replacement switch I bought for $12 will go into my “Holdit” bin. lol