This simple device automatically prevents your protein skimmer from overfilling and overflowing back into your aquarium system, using an optical sensor that mounts on the skimmer cup, which switches of and on the power to your skimmer as the skimate level rises to the top.
Features • Automatically guards your protein skimmer from overfilling • Easy installation with magnetic attachment of optical sensor. • Fits 99% of skimmers without any modifications. • Latching sensor – automatically restarts when cup is emptied. • Optical and audible alarm.
Specifications • Power input/output: 100-240 VAC, 10 Amp • Max. power: 2200 W for 220 VAC • Max mounting thickness: 8mm