[Gooserider]

Another quick question; I've seen comments to the effect that a 'rotor type' flowmeter is "highly restrictive", but no data as to 'how bad' it really is.

Can anyone post or point me at a source for data as to just how much restriction they really offer?

My understanding is that those units are the least expensive way to get data on flow in a format that can be handled by a digi-doc or mobo fan sensor.

Are there other alternatives that are comparable in cost and less restrictive?

I want to have some way of monitoring flow status in my system, at the bare MINIMUM I want 'flow / no flow' detection, ideally I would like some idea of how much flow is happening at a given momemt. (reference my prior post on disaster prevention)

Thanks,

Gooserider