{"product_id":"dt-3-single-direction-grade-crossing-detection-unit","title":"DT-3 Single-Direction Grade Crossing Detection Unit","description":"Specifically deigned for use at grade crossings, using Opto-Sensors to detect the train. Output controls flasher, gates, bells, etc. \u003cbr\u003e \u003cbr\u003eSingle-direction unit for crossing where bi-directional detection is unnecessary, such as a mainline with trains traveling in only on direction. Operates with any train length. Completely independent of track power. Use in any scale. Requires 10-18V AC or DC input.","brand":"Circuitron","offers":[{"title":"Default Title","offer_id":53179135689069,"sku":"800-5203","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0929\/7228\/6317\/files\/800-5203_01_e4cc1e85-90a1-4a3c-8191-20f542c62e74.gif?v=1774984169","url":"https:\/\/walthers.com\/products\/dt-3-single-direction-grade-crossing-detection-unit","provider":"Walthers","version":"1.0","type":"link"}