Tunze Relay 12 v to 120 VAC
that uses the 12 V signal to activate a 110 VAC pump. This is good for large aquariums where the dinky pump they supply is not big enough. I found that my pump would burn out if some dirt or something got into the pump and jarred it. I put the pump in a filter sock and found it has lasted a lot longer (maybe my imagination). Nothing beats the optical sensor for reliably sensing the level IMO. Works even when it gets gummed up with gunk or invaded by bubbles from the skimmer output.
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180 gal tank, 50 gal sump, PM RFCa6 Ca Reactor, SWC Extreme 250 1A Cone Skimmer, Tunz Osmolator ATOF, Aquacontroller Apex, Aquaillumination Sol Super Blue 6 x 75w Units, Acros/Softies/LPS/Mushrooms/Zoos, Purple/Powder Blue/Yellow Tang/3xBlue Chromis/2xTomato Clown/Lawnmower Blenny
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