A device like that would be interesting to have in a lot of places.  Like
measuring current to fuel pumps as a take on their state of repair.  Wouldn't
it be nice to have several of these and other sensors working in "background"
on another "page" of my engine monitor that I could peek at from time to time.
Ain't technology wonnerful ... Jim S.

John Slade wrote:

> > It would be relatively trivial to design a circuit that uses current
> > sensing to detect pump failure. Current to the pump that falls either
> > above or below the design window can be used to trigger an alarm or
> > activate the backup. Response would be nearly instant.
>
> Relatively trivial to you, perhaps. Current sensing sounds like a great way
> to spot a fuel or water pump failure, or even potential for failure. I
> managed to build an RST intercom that sorta works. Could I build one of
> these gizmos? What would be involved?
> John Slade (electronically challenged, but keen to learn)
>
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--
Jim Sower
Crossville, TN; Chapter 5
Long-EZ N83RT, Velocity N4095T