Sigma-Netics is one of the leaders in providing reliable and rugged miniature-pressure and vacuum switches in the industry. The company s switches are used in some of the harshest of environments that spans markets, such as underground mining excavators, dump trucks and critical aerospace and military applications. Sigma-Netics also manufactures hydro-formed metal bellows and utilizes the bellows to create liquid-filled bellows assemblies and thermostats to sense temperature. The company provides bellows and assemblies to a variety of markets, such as medical, chemical and electrical distribution equipment. Sigma-Netics manufactures rotary actuators for the aerospace industry and speed control for the electric forklift marketplace. The company is a manufacturer of hydrualic pressure switches, air pressure switches, military-aerospace pressure switches, aerospace bellows, aneroid bellows, bellows valve, flexible bellows, formed bellows, rotary actuators and controls. Sigma-Netics is located in Fairfield, N.J.