I want to be able to tell when my potable water pump is operating. With my
old pump, I simply put a remote light in series with the B+ supply to the
pump. The new variable speed pump does not lend itself to this...I need to
sense current, not voltage. I have researched magnetic reed switches but
even a relatively large reed switch requires 70 to 80 ampere-turns to cycle.
The new pump draws about 3 to 4 amps so there would be lots of turns around
the reed switch.
Any ideas?
Thanks-
Charlie