{"product_id":"bd-2-current-sensing-detection-unit","title":"BD-2 Current Sensing Detection Unit","description":"Detects current drawn by a locomotive or lighted piece of rolling stock. Unpowered equipment can be detected by using metal wheelsets with resistors connected across the insulator. Will directly drive 2-color lamp r LED-type block signals. 250 ma. output (500 ma. for BD-2HD). Circuit boards are designed for easy daisy-chain wiring of multiple blocks and will snap into a section of Printed Circuit Mounting Track. Requires 10-18V DC. Works in any scale and with most track power, systems including most forms of carrier control. \u003cbr\u003e \u003cbr\u003e3 amp capacity.","brand":"Circuitron","offers":[{"title":"Default Title","offer_id":53179149975917,"sku":"800-5502","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0929\/7228\/6317\/files\/no-image-available_21d7d424-d4a0-4828-b775-5dbb1970fa62.svg?v=1775242121","url":"https:\/\/walthers.com\/products\/bd-2-current-sensing-detection-unit","provider":"Walthers","version":"1.0","type":"link"}