Jabsco Hydro Air Switch 24V

With this very reliable, automatic, no mercury, bilge pump switch, all electric components stay far away from water. When the water in the keel rises, air is forced into the tube, and operates a diaphragm switch, in the housing, mounted at a distance.
Dimensions switch: HxWxD: 48 x 152 x 70mm
Dimensions cloche: HxWxD: 80 x 60 x 40 mm.