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Clamp the
bracket
onto a sight glass or non-metal pipe and use any 18mm capacitive proximity sensor
to detect the liquid. It will detect through the sight
glass! Use one to detect the high point and
one for the low point and you can control
the level between those points using a latching
relay. The sight glass can be any diameter up to
1". Liquid level control just doesn't get any easier than this!
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