Patent ID: 8591198

Claim:
A switch comprising: a housing having an open end which defines an interior region; a ring having an annular shape and carried in the housing adjacent to the open end thereof, the ring including molded members which extend radially toward the center of the ring; an elongated plate with first and second ends where one end of the plate is coupled to a radial member of the ring, and the other end of the plate has an opening, and is deflectable, a strain gauge is carried on the plate and extends radially toward the opening in the plate; a cylindrical pressure plate with an axial connector prong which engages the opening of the deflectable end with a friction fit and, in response to one of applied fluid level, or fluid pressure, the plate moves axially in a first direction, relative to the ring, to generate a signal of a first polarity at a selected electrical circuit, wherein the circuit is carried in the housing with the strain gauge located between the pressure plate and the circuit; an electrical port at a second end of the housing, displaced from the open end wherein a power cord with an end extends through the port and the end connects to the circuits, the power cord includes a vent tube which extends from the housing to a free end of the cord; and a diaphragm carried by the housing adjacent to the pressure plate, the diaphragm closes the open end of the housing wherein the housing is water tight.