{"product_id":"windowmaster-wmu-851-heavy-duty-chain-actuator","title":"WindowMaster WMU 851 Chain Actuator","description":"\u003cp\u003eThe WindowMaster WMU 851 is a heavy-duty chain actuator engineered for reliable window, roof vent, and dome operation. With a robust 500N force rating and 400mm opening stroke, it delivers consistent performance across demanding applications. Fully programmable via the WAT 200 programming device, this actuator offers flexible configuration to suit your specific ventilation requirements. Built for durability and precision in commercial and industrial environments.\u003c\/p\u003e","brand":"WindowMaster","offers":[{"title":"24V DC \/ 400mm \/ Grey","offer_id":53025488175441,"sku":"WMU851400-1","price":479.75,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1002\/8354\/7985\/files\/WMU851_fb190ebe-6497-44f2-86b8-eee6a665c5e0.webp?v=1770824485","url":"https:\/\/smokevent.direct\/products\/windowmaster-wmu-851-heavy-duty-chain-actuator","provider":"Smoke Vent Direct","version":"1.0","type":"link"}