Circuitron 800-5501 BD-1 Optical Detector Layout Wiring Requires 10-18V AC or DC

Requires 10-18V AC or DC input

It will work tethered with any NCE system

Digitrax DN166i2

015" Shims - 20 Each

Now it sets the scene for a forgotten rural area or abandoned farm

Circuitron 800-5501 BD-1 Optical Detector Layout Wiring Requires 10-18V AC or DCCircuitron 800 5501 BD 1 Optical Detector Tiny Opto Sensors detect train movement. Sensors mount between the rails and activate circuitry when shaded from a passing train. Independent of track power, rolling stock requires no modifications. Sensors fit between ties and may be ballasted over in most cases. Circuitry is extremely sensitive and will operate properly under very low levels of room light. Positive indication whenever a section of a layout