{"product_id":"recessed-door-magnetic-switch-sensor-rc-33-home-security-alarm","title":"Recessed Door Magnetic Switch Sensor – RC-33 Home Security","description":"\n\u003ch2\u003eRC-33 Recessed Door Magnetic Switch – Reliable Home Security Sensor\u003c\/h2\u003e\n\u003cp\u003eKeep your home protected with the \u003cstrong\u003eRC-33 Recessed Door Magnetic Switch (MC-33)\u003c\/strong\u003e — a compact, discreet Hall-effect magnetic sensor designed to detect door and window movement as part of your home security system. Sold as a pair, this metal-bodied sensor installs flush into the door frame for a clean, hidden look that won't compromise your interior aesthetics.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHall Sensor Technology\u003c\/strong\u003e – Uses a precision Hall-effect transducer for accurate, reliable magnetic field detection every time a door or window opens or closes.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRecessed Design\u003c\/strong\u003e – Mounts flush into the door or frame for a completely concealed, professional finish.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMetal Construction\u003c\/strong\u003e – Durable metal housing built to withstand everyday use and provide long-lasting performance.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRated 100V DC \/ 300mA\u003c\/strong\u003e – Compatible with a wide range of alarm and access control systems.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSwitching Transducer Output\u003c\/strong\u003e – Clean signal output that integrates seamlessly with most home security control panels and alarm systems.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSold as a 1-Pair Set\u003c\/strong\u003e – Includes both the sensor and the magnet for a complete, ready-to-install solution.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNo High-Concern Chemicals\u003c\/strong\u003e – Manufactured without restricted substances for safe home installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e RC-33 \/ MC-33\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Metal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSensor Type:\u003c\/strong\u003e Hall Sensor (Magnetic Sensor)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutput:\u003c\/strong\u003e Switching Transducer\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRated Voltage:\u003c\/strong\u003e 100V DC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRated Current:\u003c\/strong\u003e 300mA\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1 Pair (Sensor + Magnet)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCustomizable:\u003c\/strong\u003e Yes\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eMade in Mainland China\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePerfect For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eResidential door and window alarm systems\u003c\/li\u003e\n  \u003cli\u003eAccess control installations\u003c\/li\u003e\n  \u003cli\u003eDIY home security setups\u003c\/li\u003e\n  \u003cli\u003eSmart home security integrations\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/electromagnetic-induction-tester-coil-motherboard-fault-detector\"\u003eElectromagnetic Induction Tester – Coil \u0026amp; Circuit Fault Detector\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/air-compressor-pressure-gauge-0-10-0-12-0-25-bar-hydraulic-diy\"\u003eAir Compressor Pressure Gauge 0-10\/0-12\/0-25 Bar | DIY Tool\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/balashov-2500w-handheld-steam-cleaner-kitchen-car-home\"\u003eBALASHOV 2500W Handheld Steam Cleaner – Kitchen, Car \u0026amp; Home\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/personal-protective-equipment\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on personal protective equipment\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What is a recessed door magnetic switch sensor and how does it work?\u003c\/h4\u003e\n\u003cp\u003eA: A recessed door magnetic switch sensor (such as the RC-33 \/ MC-33) is a two-part security device consisting of a Hall-effect magnetic sensor and a corresponding magnet. The sensor is installed flush into the door frame while the magnet sits in the door itself. When the door opens, the magnet moves away from the sensor, triggering the switching output and signalling your alarm or access control system that the door has been opened.\u003c\/p\u003e\n\u003ch4\u003eQ: What alarm or security systems is the RC-33 magnetic switch compatible with?\u003c\/h4\u003e\n\u003cp\u003eA: The RC-33 magnetic switch features a standard switching transducer output rated at 100V DC and 300mA, making it compatible with most wired home security alarm panels, access control systems, and DIY security setups that accept normally-open (NO) or normally-closed (NC) magnetic contact sensors. Always verify compatibility with your specific control panel before installation.\u003c\/p\u003e\n\u003ch4\u003eQ: Is installation of the recessed door magnetic switch difficult?\u003c\/h4\u003e\n\u003cp\u003eA: Installation is straightforward for anyone comfortable with basic DIY tasks. The sensor and magnet are designed to be recessed (flush-mounted) into pre-drilled holes in the door and frame, resulting in a clean, professional look. A drill, appropriate drill bit, and basic wiring knowledge are typically all that is needed.\u003c\/p\u003e\n\u003ch4\u003eQ: How many sensors are included in one purchase?\u003c\/h4\u003e\n\u003cp\u003eA: Each purchase includes 1 pair — one magnetic sensor unit and one magnet — providing everything needed to secure one door or window entry point.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is a recessed door magnetic switch sensor and how does it work?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"A recessed door magnetic switch sensor (such as the RC-33 \/ MC-33) is a two-part security device consisting of a Hall-effect magnetic sensor and a corresponding magnet. 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