The kemo m167n water level meter indicates on a10 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 tanksthe module works using waters conductive properties by submersing a multicore wire in the water tank see this products second image each of up to 10 core wires is fixed at a dif