{"product_id":"dt-4-rolling-stock-detector","title":"800-5204 DT-4 Rolling Stock Detector","description":"\u003cp\u003e\u003cstrong\u003ePlease visit the INFORMATION page for this Superstore listing.\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003e\u003cspan\u003eIdeal for spotting a hidden train or piece of rolling stock. Four independent detection units combined onto one circuit board, can be used separately or together to control external devices. Supplied with four Opto-Sensors that mount between rails to detect movement. When train covers a sensor, the unit activates any connected DC accessory, such as an indicator light on a control panel. Independent sensitivity controls are provided for adjusting each Opto-Sensor to lighting conditions. Constructed on a 3 x 3\" printed circuit board. Requires 10-18V DC. Independent of track power. Compatible with radio or carrier control systems.\u003c\/span\u003e\u003c\/p\u003e","brand":"Circuitron","offers":[{"title":"Default Title","offer_id":51814711394590,"sku":"CIR5204","price":49.15,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0994\/8069\/9166\/files\/dt-4_rolling_stock_detector_800-5204__19359.1741297645.1280.1280.gif?v=1777934778","url":"https:\/\/mountain-subdivision-hobbies-2.myshopify.com\/products\/dt-4-rolling-stock-detector","provider":"Mountain Subdivision Hobbies","version":"1.0","type":"link"}