{"product_id":"dh-33-recessed-wired-door-contact-nc-magnetic-reed-switch-sensor","title":"DH-33 Recessed Wired Door Contact – NC Magnetic Reed Switch Sensor","description":"\u003ch2 data-section-id=\"5ptua8\" data-start=\"120\" data-end=\"137\"\u003eKey Features\u003c\/h2\u003e\r\\n\u003cp data-start=\"139\" data-end=\"372\"\u003e• Normally Closed (NC) Magnetic Contact\u003cbr data-start=\"178\" data-end=\"181\"\u003e• Recessed Hidden Installation Design\u003cbr data-start=\"218\" data-end=\"221\"\u003e• Reliable Magnetic Reed Switch Technology\u003cbr data-start=\"263\" data-end=\"266\"\u003e• Durable ABS Plastic Housing\u003cbr data-start=\"295\" data-end=\"298\"\u003e• Designed for Alarm \u0026amp; Security Systems\u003cbr data-start=\"337\" data-end=\"340\"\u003e• Suitable for Doors \u0026amp; Windows\u003c\/p\u003e\n\\n\u003cp data-start=\"406\" data-end=\"555\"\u003eThe \u003cstrong data-start=\"410\" data-end=\"453\"\u003eDH-33 Recessed Door Contact Sensor (NC)\u003c\/strong\u003e is a wired magnetic sensor designed for alarm and security systems to detect door or window openings.\u003c\/p\u003e\r\\n\u003cp data-start=\"557\" data-end=\"830\"\u003eThe sensor works using a \u003cstrong data-start=\"582\" data-end=\"622\"\u003emagnetic reed switch and magnet pair\u003c\/strong\u003e. When the door is closed, the magnet keeps the circuit closed. When the door opens and the magnet moves away, the circuit opens and sends a signal to the alarm system.\u003c\/p\u003e\r\\n\u003cp data-start=\"832\" data-end=\"984\"\u003eIts \u003cstrong data-start=\"836\" data-end=\"907\"\u003erecessed design allows installation inside the door or window frame\u003c\/strong\u003e, making the sensor hidden and more secure compared to surface-mount sensors.\u003c\/p\u003e\r\\n\u003cp data-start=\"986\" data-end=\"1173\"\u003eThe DH-33 sensor is widely used in \u003cstrong data-start=\"1021\" data-end=\"1125\"\u003ehome security systems, burglar alarms, access control systems, and commercial security installations\u003c\/strong\u003e where reliable intrusion detection is required.\u003c\/p\u003e","brand":"ZZ Marts","offers":[{"title":"Default Title","offer_id":52827975713080,"sku":"DH-33","price":450.0,"currency_code":"PKR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1012\/3932\/4984\/files\/Magnetic-door_window-sensors-with-coiled-cables.png?v=1787211283","url":"https:\/\/zzmarts.com\/products\/dh-33-recessed-wired-door-contact-nc-magnetic-reed-switch-sensor","provider":"ZZ Marts | Zam Zam Traders","version":"1.0","type":"link"}