Manufactured by Dyonics of Woburn MA, these switching units are in like new condition. This is a complete photo-electric switching unit including light source. Attach two fiber optic light guides and point the ends toward one another. When the beam of light is broken, the switch is activated. The unit measures 4 1/8" wide x 4 1/4" high x 6 7/8" deep, with light green texture-enameled aluminum case. It features front panel power switch & indicator and sensitivity adjuster, and dual rear panel setting switches (O,C,N and N,D), screw terminals for COM, NO, and NC, delay screw adjuster, and hard-wired 3-prong AC cord. Weight is approx. 4 lbs. Works of standard 115VAC, 60Hz.
