800-5501 BD-1 Block Occupancy Detector Opto-Elect People-and-Figures Still concentrating on construction

Still concentrating on construction

the new Diagram 84s proved successful

1 x Infinity Consort Cable Pack

HM7000 21-Pin Decoder socket

1 without and 3 with roof

800-5501 BD-1 Block Occupancy Detector Opto-Elect People-and-Figures Still concentrating on constructionBD 1 Block Occupancy Detector Opto Elect Details: The CIRCUITRON BD 1 is an advanced integrated circuit block occupancy detector designed to provide reliable, positive indication of track occupancy in model railway layouts. Using proven opto electronic detection technology, it identifies the presence of any rolling stock within a protected block section without requiring modifications to locomotives or wagons. Two pairs of CIRCUITRON opto sensors are