Founded in 1931 United Electric Controls (UEC), and its divisions, Applied Sensor Technologies and Precision Sensors, is a privately held corporation headquartered in Watertown, Massachusetts, USA.

UEC is a manufacturer of durable and reliable WirelessHART gas detectors; pressure, temperature, vacuum, electromechanical and electronic smart switches; safety transmitters; controls; and sensors. Focused on providing protection to equipment, processes, and personnel in a variety of industrial applications, our products range from simple units to highly specialized custom designs.

Many UEC products perform industrial alarm and emergency shutdown functions for our global customers, while others provide critical sensor inputs into their control systems. Our reputation for dependable, reliable products is a result of innovative design, superior manufacturing processes, and a corporate focus on uncompromising quality.