Kemo-M167N-Water-Level-Meter-Module-Kemo-M167N-The-Kemo-M167N-water-level-meter-indicates-on-a 10-level-LED-display-the-water-level-in-any-water-tank-where-it-is-not-immediately-possible-to-see-the-water-level-This-could-be-a-garden-water-butt-or-a-water-tank-on-a-caravan-or-boat-The-module-has-been-designed-to-be-attached-easily-to-walls-or-the-side-of-tanks-BR-BR-The-module-works-using-water-s-conductive-properties-by-submersing-a-multi-core-wire-in-the-water-tank-Each-of-up-to-10-cor