{"product_id":"mc-38-wired-magnetic-door-window-sensor-arduino-alarm-system","title":"MC-38 Wired Magnetic Door Window Sensor for Arduino Alarms","description":"\u003ch2\u003eMC-38 Wired Door \u0026amp; Window Magnetic Sensor\u003c\/h2\u003e\n\u003cp\u003eKeep your home, office, or workshop smarter and more secure with the \u003cstrong\u003eMC-38 Wired Magnetic Door \u0026amp; Window Sensor\u003c\/strong\u003e. Built around a reliable Hall-effect magnetic switch, this compact metal sensor detects when a door or window opens or closes — instantly triggering your alarm system, Arduino project, or home automation controller.\u003c\/p\u003e\n\n\u003cp\u003eWith an optional \u003cstrong\u003e30mm wire lengthening\u003c\/strong\u003e capability, installation flexibility is built right in. Whether you're wiring a DIY alarm panel, building an Arduino-based security circuit, or integrating into an existing home automation setup, this sensor delivers consistent, accurate switching performance every time.\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 magnetic Hall-effect switch for precise, contact-free detection of open\/closed states.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e30mm Wire Lengthening Option:\u003c\/strong\u003e Customizable wire length for flexible installation across a variety of door and window frames.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDurable Metal Construction:\u003c\/strong\u003e Sturdy metal housing resists everyday wear for long-lasting reliability.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eArduino Compatible:\u003c\/strong\u003e Integrates seamlessly with Arduino boards, Raspberry Pi, and most microcontroller platforms.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Application:\u003c\/strong\u003e Ideal for home alarm systems, DIY security projects, smart home automation, and hobbyist electronics.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSwitching Transducer Output:\u003c\/strong\u003e Clean digital switching signal for easy integration with control panels and microcontrollers.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNo High-Concern Chemicals:\u003c\/strong\u003e Material composition confirmed free from high-concern chemicals.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMagnetic Sensor (Hall Sensor)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSwitching Transducer\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMetal\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWire Lengthening\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e30mm option available\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible With\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eArduino, home alarm systems, smart home controllers\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMade in Mainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003ePerfect For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eDIY home alarm and security systems\u003c\/li\u003e\n  \u003cli\u003eArduino and Raspberry Pi projects\u003c\/li\u003e\n  \u003cli\u003eSmart home automation setups\u003c\/li\u003e\n  \u003cli\u003eDoor and window open\/close detection circuits\u003c\/li\u003e\n  \u003cli\u003eHobbyist and maker electronics builds\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cp\u003eExplore more tools and electronics for your DIY projects:\u003c\/p\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\/360-bicycle-chain-cleaner-tool-gear-cleaning-kit\"\u003e360° Bicycle Chain Cleaner Tool | Bike Gear Cleaning Kit\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: Is the MC-38 magnetic door sensor compatible with Arduino?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! The MC-38 wired magnetic sensor is fully compatible with Arduino, Raspberry Pi, and most microcontroller platforms. Its clean switching transducer output makes it straightforward to integrate into any digital input circuit or alarm project.\u003c\/p\u003e\n\u003ch4\u003eQ: What does the 30mm wire lengthening option mean?\u003c\/h4\u003e\n\u003cp\u003eA: The 30mm wire lengthening option means the sensor's leads can be extended by 30mm, giving you added flexibility when mounting the sensor on thicker door or window frames and routing wires through tight spaces during installation.\u003c\/p\u003e\n\u003ch4\u003eQ: Can this sensor be used in a home alarm system?\u003c\/h4\u003e\n\u003cp\u003eA: Absolutely. The MC-38 is designed specifically for use in wired home alarm systems. It detects the separation of its two magnetic components when a door or window is opened, sending a switching signal to your alarm control panel or microcontroller.\u003c\/p\u003e\n\u003ch4\u003eQ: Is this sensor suitable for both indoor and outdoor use?\u003c\/h4\u003e\n\u003cp\u003eA: This sensor is best suited for indoor applications such as interior doors, windows, cabinets, and drawers. For outdoor use, ensure it is protected from direct moisture exposure, as it is not explicitly rated as weatherproof.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Is the MC-38 magnetic door sensor compatible with Arduino?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes! The MC-38 wired magnetic sensor is fully compatible with Arduino, Raspberry Pi, and most microcontroller platforms. Its clean switching transducer output makes it straightforward to integrate into any digital input circuit or alarm project.\"}}, {\"@type\": \"Question\", \"name\": \"What does the 30mm wire lengthening option mean?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The 30mm wire lengthening option means the sensor's leads can be extended by 30mm, giving you added flexibility when mounting the sensor on thicker door or window frames and routing wires through tight spaces during installation.\"}}, {\"@type\": \"Question\", \"name\": \"Can this sensor be used in a home alarm system?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Absolutely. The MC-38 is designed specifically for use in wired home alarm systems. It detects the separation of its two magnetic components when a door or window is opened, sending a switching signal to your alarm control panel or microcontroller.\"}}, {\"@type\": \"Question\", \"name\": \"Is this sensor suitable for both indoor and outdoor use?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This sensor is best suited for indoor applications such as interior doors, windows, cabinets, and drawers. For outdoor use, ensure it is protected from direct moisture exposure, as it is not explicitly rated as weatherproof.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/n8ande-60.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Home page\", \"item\": \"https:\/\/n8ande-60.myshopify.com\/collections\/frontpage\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"MC-38 Wired Magnetic Door Window Sensor for Arduino Alarms\", \"item\": \"https:\/\/n8ande-60.myshopify.com\/products\/mc-38-wired-magnetic-door-window-sensor-arduino-alarm-system\"}]}\u003c\/script\u003e","brand":"Axl","offers":[{"title":"Default Title","offer_id":44165788631127,"sku":"\u003cnone\u003e","price":7.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0676\/6008\/7383\/files\/S905b7105c8a24cd3b3729e0c3e9e2b0be.webp?v=1786726908","url":"https:\/\/axlcustomersupport.com\/products\/mc-38-wired-magnetic-door-window-sensor-arduino-alarm-system","provider":"Axl","version":"1.0","type":"link"}