Circuitron 800-5201 DT-1 Grade Crossing Detection Unit Trees - Palm 1 Clear window material 5"

1 Clear window material 5" x 5" (12

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Circuitron 800-5201 DT-1 Grade Crossing Detection Unit Trees - Palm 1 Clear window material 5"Circuitron 800 5201 DT 1 Grade Crossing Detection Unit The Circuitron DT 1 is a bi directional detection circuit designed for DC track power that provides an output whenever one of its Opto Sensors is covered by a piece of rolling stock. Absolutely no modifications to the rolling stock are necessary. 4 Opto Sensors are provided, 2 of which are used for each direction of travel. The two Opto Sensors for each direction are wired in series, and a single