Attwood 4201-1 float switch features a compact, low profile design that mounts on any surface from a horizontal up to a 24-degree angle. Incorporates a reliable and affordable mechanical switch that actuates pump motor a 5 cm (2”) water level. Wire leads do not flex or hinge with the float as on some competitive models. Integral cover dampens bilge sloshing to reduce pump cycling and also prevents debris interference. Sealed switch mechanism resists moisture, fume-ignition and electrical shock. Contains no mercury.