{"product_id":"dh-31-door-contact-nc-magnetic-door-sensor","title":"DH-31 Door Contact – NC Magnetic Door Sensor","description":"\u003ch2 data-start=\"98\" data-end=\"115\"\u003eKey Features\u003c\/h2\u003e\r\\n\u003cp data-start=\"117\" data-end=\"338\"\u003e• Normally Closed (NC) Magnetic Contact\u003cbr data-start=\"156\" data-end=\"159\"\u003e• Designed for Alarm \u0026amp; Security Systems\u003cbr data-start=\"198\" data-end=\"201\"\u003e• Durable ABS Plastic Housing\u003cbr data-start=\"230\" data-end=\"233\"\u003e• Reliable Magnetic Detection\u003cbr data-start=\"262\" data-end=\"265\"\u003e• Surface Mount Easy Installation\u003cbr data-start=\"298\" data-end=\"301\"\u003e• Compatible with Most Alarm Panels\u003c\/p\u003e\n\n\u003cp data-start=\"372\" data-end=\"513\"\u003eThe \u003cstrong data-start=\"376\" data-end=\"403\"\u003eDH-31 Door Contact (NC)\u003c\/strong\u003e is a magnetic sensor used in security and alarm systems to detect whether a door or window is open or closed.\u003c\/p\u003e\r\\n\u003cp data-start=\"515\" data-end=\"788\"\u003eIt consists of two parts: a \u003cstrong data-start=\"543\" data-end=\"578\"\u003ereed switch sensor and a magnet\u003c\/strong\u003e. When the door is closed, the magnet keeps the circuit closed. When the door opens, the magnetic field is interrupted and the circuit opens, triggering the alarm system.\u003c\/p\u003e\r\\n\u003cp data-start=\"790\" data-end=\"931\"\u003eThe DH-31 contact is widely used in \u003cstrong data-start=\"826\" data-end=\"930\"\u003ehome security systems, burglar alarms, access control systems, and commercial security installations\u003c\/strong\u003e.\u003c\/p\u003e\r\\n\u003cp data-start=\"933\" data-end=\"1056\"\u003eIts compact design and strong ABS casing make it suitable for installation on wooden, metal, or aluminum doors and windows.\u003c\/p\u003e\r\\n\u003cp\u003eThis magnetic door sensor is available at ZZ Marts in Karachi and Lahore, with delivery across Pakistan.\u003c\/p\u003e","brand":"ZZ Marts","offers":[{"title":"Default Title","offer_id":52827975287096,"sku":"DH-31 NC","price":350.0,"currency_code":"PKR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1012\/3932\/4984\/files\/White-magnetic-sensor-devices-with-logo.png?v=1787211277","url":"https:\/\/zzmarts.com\/products\/dh-31-door-contact-nc-magnetic-door-sensor","provider":"ZZ Marts | Zam Zam Traders","version":"1.0","type":"link"}