Pros:
No level switches that will fail in short order
Alarm concept
Cons:
Mounting arm for sensor doesn't look like it would work in my sump
I think the sensor is normally submersed in the water, so salt creep and eventual failure.
Alarm can not be configured
Pump doesn't look like it would work for me as my fresh water tank is far from my sump
Instead of solenoid option, I would personally like to see a dry contact rated for 1A @ 120 VAC
Just my 2 cents
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