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Circuitron 800-5502, BD-2 Block Occupancy Detector - Current Sensingcir800-5502$21.70This Item Is Regularly In Stock
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Circuitron 800-5201, DT-1 Grade Crossing Detectorcir800-5201$29.95This Item Is Regularly In Stock
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Circuitron 800-5204, DT-4 Rolling Stock Detector/Stopping Modulecir800-5204$44.20This Item Is Regularly In Stock
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Circuitron 800-5530, SD-3 Signal Detector - 3 Aspect Bi-color LEDcir800-5530$20.20This Item Is Regularly In Stock