{"product_id":"liftmaster-m-duty-door-in-motion-counter","title":"90-503000ML Non Resettable Counter Modification for Medium Duty (M47 Mod)","description":"\u003cp class=\"richp\"\u003eA 6-digit non-resettable 24VAC electro mechanical counter is mounted in the Door Operator control enclosure. The device counts the number of times the CLOSE coil is energized (M wiring), or whenever the operator reaches an auxiliary open limit switch (medium‑duty wiring). This corresponds to the number of complete door cycles of use (counts both partial or complete cycles as one cycle).\r\u003c\/p\u003e\u003cp class=\"richp\"\u003eThis modification, when combined with other modifications, may not fit inside a standard door operator’s electrical box and an upgraded electrical enclosure may be required. \u003c\/p\u003e\u003cp class=\"richp\"\u003eFactory installed but or field kit available (71-503000ML)\u003c\/p\u003e","brand":"CHAMBERLAIN","offers":[{"title":"Default Title","offer_id":46371977265290,"sku":"90-503000ML","price":190.61,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/7978\/5354\/files\/90-503000.png?v=1760976822","url":"https:\/\/www.rsoperators.com\/products\/liftmaster-m-duty-door-in-motion-counter","provider":"R\u0026S Automation, Inc.","version":"1.0","type":"link"}