{"product_id":"dt-1-grade-crossing-detector","title":"800-5201 DT-1 Grade Crossing Detector","description":"\u003cp\u003e\u003cstrong\u003ePlease visit the INFORMATION page for this Superstore listing.\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003e\u003cspan\u003eSpecifically deigned for use at grade crossings, using Opto-Sensors to detect the train. Output controls flasher, gates, bells, etc. \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eDetects train when an Opto-Sensor is covered. Senses track polarity and activates only the Opto-Sensors for the direction of travel. Always turns off after the last piece of rolling stock clears the crossing. Includes four Opto-Sensors. Requires an Alternating Flasher Unit to operate flashing lamps. Note: DT-1 cannot detect a short train or loco if it falls between Opto-Sensors. Use in any scale with DC track power. 2 x 3\" printed circuit board. 10-18V AC or DC input.\u003c\/span\u003e\u003c\/p\u003e","brand":"Circuitron","offers":[{"title":"Default Title","offer_id":51814711263518,"sku":"CIR5201","price":36.85,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0994\/8069\/9166\/files\/dt-1_grade_crossing_detection_unit_800-5201__77539.1741298534.1280.1280.gif?v=1777934761","url":"https:\/\/mountain-subdivision-hobbies-2.myshopify.com\/products\/dt-1-grade-crossing-detector","provider":"Mountain Subdivision Hobbies","version":"1.0","type":"link"}