Profile: AA Electric supplies electrical and electronic controls to solve our automation / control applications. Our products include industrial grade power suppliers, limit switches, capacitive humidity sensor, safety light curtain, energy isolation valves, pile driver and health monitoring systems. Our EVN2000A limit switch eliminates the need to gain access to the inside of the housing, which in turn makes a housing cover, cover screws, and gasket obsolete. Our Ross L-O-X® valves are pneumatic energy isolation devices and are generally used as the first valve in a line supplying compressed air to equipment.