{"product_id":"liftmaster-large-profile-monitored-edge-with-aluminum-channel-4ft","title":"LiftMaster Large Profile Monitored Edge with Aluminum Channel - 4ft","description":"\u003cul\u003e\n\u003cli\u003eFast shipping — same-day on orders before 4:30 PM EST\u003cmeta charset=\"UTF-8\"\u003e\n\u003ch2 data-section-id=\"o29hhg\" data-start=\"0\" data-end=\"85\"\u003eLiftMaster L504AL Large Profile Monitored Safety Edge with Aluminum Channel – 4 Ft\u003c\/h2\u003e\n\u003cp data-start=\"87\" data-end=\"540\"\u003eThe LiftMaster L504AL Large Profile Monitored Safety Edge is a high-performance monitored entrapment protection device designed for automatic gates, commercial doors, and industrial access control systems. Built for safety, durability, and UL325 compliance, this 4-foot monitored resistive edge detects contact with obstacles and immediately signals the gate or door operator to stop and reverse movement, helping protect people, vehicles, and property.\u003c\/p\u003e\n\u003cp data-start=\"542\" data-end=\"893\"\u003eFeaturing a large-profile design, the LiftMaster L504AL provides a wider sensing surface for improved obstacle detection and reliable performance in high-traffic residential, commercial, and industrial environments. The included aluminum mounting channel offers secure installation and long-lasting durability for both indoor and outdoor applications.\u003c\/p\u003e\n\u003cp data-start=\"895\" data-end=\"1295\"\u003eThe LiftMaster L504AL is commonly used on sliding gates, swing gates, barrier arms, commercial overhead doors, warehouse systems, and controlled-access entry points where monitored safety devices are required. Designed for compatibility with LiftMaster monitored gate operators and UL325-compliant safety systems, this monitored edge delivers dependable performance in demanding operating conditions.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1iz91iu\" data-start=\"1297\" data-end=\"1313\"\u003eKey Features\u003c\/h3\u003e\n\u003cul data-start=\"1314\" data-end=\"1817\"\u003e\n\u003cli data-section-id=\"1j8rw2y\" data-start=\"1314\" data-end=\"1356\"\u003eGenuine LiftMaster monitored safety edge\u003c\/li\u003e\n\u003cli data-section-id=\"1v9g1b4\" data-start=\"1357\" data-end=\"1406\"\u003eLarge profile design for increased contact area\u003c\/li\u003e\n\u003cli data-section-id=\"vy9nrq\" data-start=\"1407\" data-end=\"1448\"\u003e4-foot monitored resistive sensing edge\u003c\/li\u003e\n\u003cli data-section-id=\"zb8yy2\" data-start=\"1449\" data-end=\"1493\"\u003eIncludes durable aluminum mounting channel\u003c\/li\u003e\n\u003cli data-section-id=\"1oqk421\" data-start=\"1494\" data-end=\"1552\"\u003eDetects obstructions and activates stop\/reverse function\u003c\/li\u003e\n\u003cli data-section-id=\"2kqid0\" data-start=\"1553\" data-end=\"1601\"\u003eDesigned for UL325-compliant monitored systems\u003c\/li\u003e\n\u003cli data-section-id=\"1hb3x9n\" data-start=\"1602\" data-end=\"1661\"\u003eWeather-resistant construction for indoor and outdoor use\u003c\/li\u003e\n\u003cli data-section-id=\"1jzbnf6\" data-start=\"1662\" data-end=\"1713\"\u003eIdeal for commercial and residential gate systems\u003c\/li\u003e\n\u003cli data-section-id=\"qi87th\" data-start=\"1714\" data-end=\"1763\"\u003eReliable performance in high-cycle applications\u003c\/li\u003e\n\u003cli data-section-id=\"aqn7lv\" data-start=\"1764\" data-end=\"1817\"\u003eEasy installation and professional-grade durability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"xx0hya\" data-start=\"1819\" data-end=\"1842\"\u003eCommon Applications\u003c\/h3\u003e\n\u003cul data-start=\"1843\" data-end=\"2072\"\u003e\n\u003cli data-section-id=\"5vxe5f\" data-start=\"1843\" data-end=\"1868\"\u003eAutomatic sliding gates\u003c\/li\u003e\n\u003cli data-section-id=\"1s3oqko\" data-start=\"1869\" data-end=\"1891\"\u003eSwing gate operators\u003c\/li\u003e\n\u003cli data-section-id=\"1fg12k5\" data-start=\"1892\" data-end=\"1917\"\u003eCommercial gate systems\u003c\/li\u003e\n\u003cli data-section-id=\"12k8570\" data-start=\"1918\" data-end=\"1945\"\u003eIndustrial access control\u003c\/li\u003e\n\u003cli data-section-id=\"1nxbtw5\" data-start=\"1946\" data-end=\"1972\"\u003eSecurity barrier systems\u003c\/li\u003e\n\u003cli data-section-id=\"19xp9hz\" data-start=\"1973\" data-end=\"2000\"\u003eCommercial overhead doors\u003c\/li\u003e\n\u003cli data-section-id=\"1bi1g9h\" data-start=\"2001\" data-end=\"2037\"\u003eWarehouse and loading dock systems\u003c\/li\u003e\n\u003cli data-section-id=\"1stv475\" data-start=\"2038\" data-end=\"2072\"\u003eApartment and HOA gate entrances\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"w2eo3m\" data-start=\"2074\" data-end=\"2093\"\u003eCompatible With\u003c\/h3\u003e\n\u003cul data-start=\"2094\" data-end=\"2274\"\u003e\n\u003cli data-section-id=\"83bbii\" data-start=\"2094\" data-end=\"2131\"\u003eLiftMaster monitored gate operators\u003c\/li\u003e\n\u003cli data-section-id=\"w67pvo\" data-start=\"2132\" data-end=\"2169\"\u003eLiftMaster monitored safety systems\u003c\/li\u003e\n\u003cli data-section-id=\"13otxj9\" data-start=\"2170\" data-end=\"2201\"\u003eLiftMaster wireless edge kits\u003c\/li\u003e\n\u003cli data-section-id=\"7nee2k\" data-start=\"2202\" data-end=\"2237\"\u003eUL325-compliant monitored systems\u003c\/li\u003e\n\u003cli data-section-id=\"dv3k6l\" data-start=\"2238\" data-end=\"2274\"\u003eCommercial gate and door operators\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"nucr17\" data-start=\"2276\" data-end=\"2304\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul data-start=\"2305\" data-end=\"2597\"\u003e\n\u003cli data-section-id=\"z3l08d\" data-start=\"2305\" data-end=\"2320\"\u003eModel: L504AL\u003c\/li\u003e\n\u003cli data-section-id=\"jlbi4o\" data-start=\"2321\" data-end=\"2337\"\u003eLength: 4 Feet\u003c\/li\u003e\n\u003cli data-section-id=\"1klk154\" data-start=\"2338\" data-end=\"2377\"\u003eType: Monitored Resistive Safety Edge\u003c\/li\u003e\n\u003cli data-section-id=\"16i8egf\" data-start=\"2378\" data-end=\"2402\"\u003eProfile: Large Profile\u003c\/li\u003e\n\u003cli data-section-id=\"1qzho8e\" data-start=\"2403\" data-end=\"2440\"\u003eMounting: Aluminum channel included\u003c\/li\u003e\n\u003cli data-section-id=\"ljok7m\" data-start=\"2441\" data-end=\"2488\"\u003eInstallation: Vertical or horizontal mounting\u003c\/li\u003e\n\u003cli data-section-id=\"cedvom\" data-start=\"2489\" data-end=\"2547\"\u003eApplication: Automatic gates and commercial door systems\u003c\/li\u003e\n\u003cli data-section-id=\"1ua2fwf\" data-start=\"2548\" data-end=\"2597\"\u003eCompliance: UL325 monitored safety requirements\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1qc7kle\" data-start=\"2599\" data-end=\"2638\"\u003eImportant Compatibility Information\u003c\/h3\u003e\n\u003cp data-start=\"2639\" data-end=\"2973\"\u003eThe LiftMaster L504AL is designed for monitored entrapment protection systems and may require a compatible LiftMaster monitored interface, wireless edge transmitter, or monitored operator input depending on the gate operator being used. It is not intended for non-monitored systems unless compatible monitoring equipment is installed.\u003c\/p\u003e\n\u003ch3 data-section-id=\"2cn7aw\" data-start=\"2975\" data-end=\"2998\"\u003eCommon Search Terms\u003c\/h3\u003e\n\u003cp data-start=\"2999\" data-end=\"3356\"\u003eLiftMaster L504AL, LiftMaster large profile edge, LiftMaster monitored safety edge, LiftMaster gate safety sensor, LiftMaster 4ft monitored edge, UL325 safety edge, LiftMaster gate entrapment protection, automatic gate safety edge, LiftMaster resistive edge, LiftMaster aluminum channel edge, commercial gate safety edge, LiftMaster gate operator accessory.\u003c\/p\u003e\n\u003ch3 data-section-id=\"5t7ttf\" data-start=\"3358\" data-end=\"3378\"\u003ePackage Includes\u003c\/h3\u003e\n\u003cul data-start=\"3379\" data-end=\"3496\"\u003e\n\u003cli data-section-id=\"lbkwip\" data-start=\"3379\" data-end=\"3420\"\u003eLiftMaster L504AL monitored safety edge\u003c\/li\u003e\n\u003cli data-section-id=\"1r5aqvg\" data-start=\"3421\" data-end=\"3448\"\u003eAluminum mounting channel\u003c\/li\u003e\n\u003cli data-section-id=\"145jq9n\" data-start=\"3449\" data-end=\"3468\"\u003eMounting hardware\u003c\/li\u003e\n\u003cli data-section-id=\"wb4lof\" data-start=\"3469\" data-end=\"3496\"\u003eInstallation instructions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"3498\" data-end=\"3704\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eThe LiftMaster L504AL Large Profile Monitored Safety Edge is an ideal replacement or upgrade solution for maintaining safe, compliant, and reliable operation of automatic gate and commercial access systems.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Service Spring Corp","offers":[{"title":"Default Title","offer_id":50684219228446,"sku":"L504AL","price":171.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0978\/2781\/5710\/files\/imagegen_b0621bfb-5d4c-403d-a625-facf25de23e0.jpg?v=1772790692","url":"https:\/\/garage-doorparts.com\/products\/liftmaster-large-profile-monitored-edge-with-aluminum-channel-4ft","provider":"garage-doorparts.com","version":"1.0","type":"link"}