{"product_id":"micro-mark-83646-irdot-2dew-infra-red-detectors-of-trains-pcb-circuit-board","title":"Micro-Mark 83646 IRDOT-2DEW Infra-Red Detectors of Trains PCB Circuit Board","description":"Please see pictures for details. Condition may vary due to age and wear. A beam of Invisible Light Detects the Location of Model Trains Our Infra Red Detector Of Trains (IRDOT) emits a beam of invisible infrared light through a small hole drilled between the ties of your model railroad track. When a locomotive or railcar passes overhead, it reflects this beam through the same hole to IRDOT's detector. This, in turn, triggers a circuit which turns on a light or energizes a relay. Use it to indicate when a train has reached the end of a hidden siding, is located in a tunnel, has cleared hidden staging yard switches and more. IRDOT's circuitry is independent of track power and detects both powered and unpowered rolling stock without modification. Operation is not affected by room lighting. Circuit board is 1-1\/4 inches wide x 3-1\/2 inches long. Requires external 12-16v AC or DC power supply (use the accessory terminals of your power pack or separate transformer). Includes red LED for train indication, plus instructions for advanced circuits, signals and easy installation.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eCondition:\u003c\/strong\u003e Excellent (\u003ca href=\"#\" title=\"C-7: Trainz does not provide grading for parts. Standards for all toy train related accessory items apply to the visual appearance of the item and do not consider the operating functionality of the equipment. Condition and Grading Standards are subjective, at best, and are intended to act as a guide.\"\u003eC-7\u003c\/a\u003e)\u003cbr\u003e\u003cstrong\u003eOperational Status:\u003c\/strong\u003e \u003ca href=\"#\" title=\"This part is in workable condition.\"\u003eFunctional\u003c\/a\u003e\u003cbr\u003e\u003cstrong\u003eOriginal Box:\u003c\/strong\u003e No\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Micro-Mark\u003cbr\u003e\u003cstrong\u003eModel Number:\u003c\/strong\u003e 83646\u003cbr\u003e\u003cstrong\u003eVariation:\u003c\/strong\u003e Used\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eCategory 1:\u003c\/strong\u003e Parts\u003cbr\u003e\u003cstrong\u003eCategory 2:\u003c\/strong\u003e Control \u0026amp; Electrical\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cem\u003e\u003cfont color=\"blue\"\u003eWe are unable to provide parts lookup service or fitment assistance.\u003c\/font\u003e\u003c\/em\u003e\u003cbr\u003e\u003cbr\u003eThe Trainz SKU for this item is P12722357. \u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size: 6px !important; color: #d3d3d3 !important; line-height: 8px !important;\"\u003eTrainz Product Id: 12722357\u003c\/span\u003e","brand":"Micro-Mark","offers":[{"title":"Default Title","offer_id":44044040831098,"sku":"P12722357","price":30.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1260\/4747\/files\/20240807-072952-C3-Trainz-12722357-STILL-00.jpg?v=1757687898","url":"https:\/\/www.trainz.com\/products\/micro-mark-83646-irdot-2dew-infra-red-detectors-of-trains-pcb-circuit-board","provider":"Trainz","version":"1.0","type":"link"}