Circuitron 5502, BD-2 Block occupancy Detector current sensing 800-5502

CIRCUITRON 800-5502 BD-2 BLOCK OCCUPANCY DETECTOR CURRENT SENSING NEW!🇺🇸 MADE!

Circuitron 800-5502 HO BD-2 Current Sensing Detection Unit

Model Railroad Electronics- Block Occupancy Detector (Current Sensing)

Circuitron DT-2 800-5202 Logic Grade Crossing Detector

1 x model train detector automatic signal controller crossing system trigger etc

🚂New! Circuitron ER-2 External Relay 800-5624🚂

INNOVATIVE TRAIN TECH ITTC DT-1 INFRARED TRAIN DETECTOR TIMER FOR TRAIN LAYOUT