Alphacool Eisfluegel Flow Gauge Variation (Amazon, not for Normal Sales) red Rot / Plexi 6-11mm

The media could not be loaded.  I wanted a visual indicator that water was constantly flowing for the water pump n my laser cutter as you can cause a failure in the laser tube with overheating if the water pump fails or tubes get blocked.I had a good look round at what was available; I could have got one designed for PC cooling which I am sure would have been fine but I would have then had to purchase additional fittings, I do find for such a simple basic item these are expensive for what they are but that’s not a dig at this product they are all around the same price or you can go for an all singing and dancing one far more expensive.Fitting is really simple just pushing the inlet tube to one end and outlet tube to the other, it works as it should and does the job I want it to do, I do plan to put a little LED behind it to make it more prominent but still ideal as it is.Overall does exactly what I wanted, the finishing is a bit rough and the reason I have given it four stars rather than five.

I have a K40 laser and this gives you confidence that the tube is being cooled with a quick glance

Nice to know the cooling water for my laser is flowing in the pioes

Bought this indicator to show whether my seal pump was working on my boat, worked a treat!

It does the job showing me there is flow rate does not look cheap would recommend .

good product ,exactly what i needed,

Looks nice metallic finish works great ! No noise!