, Solenoids, Rotary Switches, and Illuminated Products Electroswitch has an extensive offering of encoders, both optical and mechanical, as well as rotary switches, illuminated push... manufacturers, Electroswitch is the ideal "Source for Solutions." Optical and Mechanical Encoders Electromechanical Rotary Switches Illuminated Push-Button Switches and Indicators ...-button switches and indicators, solenoids and value added assemblies. A hallmark of Electroswitch's success and quality is a tremendous emphasis on design, qualification and test...