{"product_id":"george-risk-industries-inc-200-48hd-overhead-door-contact","title":"George Risk Industries Inc. 200-48HD Overhead Door Contact","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe GEORGE RISK INDUSTRIES INC. 200-48HD is an overhead door contact designed for use in security and access control applications. This 4-lead contact assembly mounts to overhead door systems and provides a reliable switching signal to an alarm panel or control system when the door changes position. The 4-lead configuration supports supervision or dual-zone wiring, making it suitable for installations that require monitored circuit integrity. Security installers and low-voltage alarm technicians are the primary trades that work with this device.\u003c\/p\u003e\u003cp\u003eThis contact is intended for overhead door applications in commercial and light industrial environments, though it is also used in residential settings where overhead garage or warehouse doors require position monitoring. The unit is sold individually and is appropriate for new installations as well as replacement of existing overhead door contacts in security systems. Installers working on loading dock doors, commercial garage doors, or similar large-format overhead doors will find this contact suited to that application.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e4-lead wiring configuration supports supervised or dual-zone circuit installations\u003c\/li\u003e\n\u003cli\u003eDesigned specifically for overhead door mounting applications\u003c\/li\u003e\n\u003cli\u003eSold as a single unit for straightforward replacement or new installation\u003c\/li\u003e\n\u003cli\u003eCompatible with standard low-voltage alarm and access control panel wiring\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or new-installation overhead door contact for use with low-voltage security alarm and access control systems requiring a 4-lead door position sensor.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is typically performed by a licensed low-voltage or alarm systems technician. Before servicing or replacing the contact, de-energize the associated alarm panel zone and confirm the overhead door is secured in a fixed position before mounting. Follow local low-voltage wiring codes and the alarm panel manufacturer's wiring guidelines when terminating the 4-lead connections. Avoid routing signal wiring in the same conduit as high-voltage power conductors.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit of Measure\u003c\/strong\u003e: Each\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity Per Package\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLead Configuration\u003c\/strong\u003e: 4 Lead\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Category\u003c\/strong\u003e: Overhead Door Contacts\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: GEORGE RISK INDUSTRIES INC.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 200-48HD\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GEORGE RISK INDUSTRIES INC.","offers":[{"title":"Default Title","offer_id":51688064450866,"sku":"200-48HD","price":133.58,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/2fa393bc92592b0ebe82dccee3c81593.jpg?v=1788239544","url":"https:\/\/voomisupply.com\/products\/george-risk-industries-inc-200-48hd-overhead-door-contact","provider":"Voomi Supply","version":"1.0","type":"link"}