{"product_id":"dh-31-door-contact-no-magnetic-door-sensor","title":"DH-31 Door Contact – NO Magnetic Door Sensor","description":"\u003ch2 data-start=\"98\" data-end=\"115\"\u003eKey Features\u003c\/h2\u003e\r\\n\u003cp data-start=\"117\" data-end=\"336\"\u003e• Normally Open (NO) Magnetic Contact\u003cbr data-start=\"154\" data-end=\"157\"\u003e• Designed for Alarm \u0026amp; Security Systems\u003cbr data-start=\"196\" data-end=\"199\"\u003e• Durable ABS Plastic Housing\u003cbr data-start=\"228\" data-end=\"231\"\u003e• Reliable Magnetic Detection\u003cbr data-start=\"260\" data-end=\"263\"\u003e• Surface Mount Easy Installation\u003cbr data-start=\"296\" data-end=\"299\"\u003e• Compatible with Most Alarm Panels\u003c\/p\u003e\n\n\u003cp data-start=\"370\" data-end=\"513\"\u003eThe \u003cstrong data-start=\"374\" data-end=\"401\"\u003eDH-31 Door Contact (NO)\u003c\/strong\u003e is a magnetic sensor used in security and alarm systems to monitor the opening and closing of doors or windows.\u003c\/p\u003e\r\\n\u003cp data-start=\"515\" data-end=\"679\"\u003eThis model works on \u003cstrong data-start=\"535\" data-end=\"571\"\u003eNormally Open (NO) configuration\u003c\/strong\u003e, meaning the circuit remains open when the magnet is near the sensor and closes when the magnet moves away.\u003c\/p\u003e\r\\n\u003cp data-start=\"681\" data-end=\"893\"\u003eThe device consists of two parts: a \u003cstrong data-start=\"717\" data-end=\"754\"\u003emagnetic reed switch and a magnet\u003c\/strong\u003e. When the door opens and the magnet separates from the sensor, the circuit closes and can trigger an alarm or signal to the control panel.\u003c\/p\u003e\r\\n\u003cp data-start=\"895\" data-end=\"1037\"\u003eThe DH-31 sensor is commonly used in \u003cstrong data-start=\"932\" data-end=\"1036\"\u003ehome security systems, burglar alarms, access control systems, and commercial security installations\u003c\/strong\u003e.\u003c\/p\u003e\r\\n\u003cp data-start=\"1039\" data-end=\"1155\"\u003eIts compact and durable ABS plastic design allows easy installation on wooden, metal, and aluminum doors or windows.\u003c\/p\u003e\r\\n\u003cp\u003eYou can order this magnetic door sensor from ZZ Marts, with branches in Karachi and Lahore and nationwide delivery.\u003c\/p\u003e","brand":"ZZ Marts","offers":[{"title":"Default Title","offer_id":52827975319864,"sku":"DH-31 NO","price":499.0,"currency_code":"PKR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1012\/3932\/4984\/files\/White-magnetic-sensor-devices-with-logo_8e71454a-b268-481a-8c43-cd53ee6d9cc4.png?v=1787211277","url":"https:\/\/zzmarts.com\/products\/dh-31-door-contact-no-magnetic-door-sensor","provider":"ZZ Marts | Zam Zam Traders","version":"1.0","type":"link"}