United Electric Controls UEC

Precision Sensors is a division of United Electric Controls that designs and manufactures electromechanical and solid-state pressure, vacuum, liquid level, temperature, flow and altitude/airspeed switches for commercial, military aerospace and defence industries. 
Precision Sensors was founded over 50 years ago to serve the aerospace and defense industries.   Precision Sensors delivers fundamental value as Leaders in safety, alarm and shutdown.

http://www.precisionsensors.com/pd_am.shtml