This vertical float switch ( level switch ) with small dimension meets the criteria of protection class IP68 (protection against continuous immersion).
By using a PA screw connection instead of an otherwise usual metal fitting, an electrochemical reaction by dissolved salts can be excluded. Therefore, this float switch is excellently suited for salty liquids (e.g. seawater aquarium).
By axial rotation of the float by 180° it is possible to reverse the switching function from normally open.