{"product_id":"mc-38-wired-magnetic-house-security-alarm-sensor-for-door-and-windows","title":"MC-38 Wired Magnetic House Security Alarm Sensor for Door and Windows","description":"\u003cmeta name=\"description\" content=\"Buy MC38 Wired Magnetic House Security Alarm Sensor for Door and online in India at best price from The Tech Depot, Bengaluru. Authentic product, 7-day warranty on manufacturing defects, fast delivery across India.\"\u003e\n\u003ch1\u003eMC-38 Wired Magnetic Door \u0026amp; Window Security Alarm Sensor\u003c\/h1\u003e\n\u003cp\u003eProtect your home, office, or project enclosures with the MC-38 wired magnetic contact sensor - a reliable reed-switch-based security device that detects when doors or windows are opened. Ideal for DIY alarm systems, Arduino\/Raspberry Pi security projects, and professional intrusion detection setups. Available from The Tech Depot, Bengaluru, with fast shipping and dedicated support.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eMC-38\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensor Type\u003c\/td\u003e\n\u003ctd\u003eWired Magnetic Reed Switch (Normally Closed - NC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContact Form\u003c\/td\u003e\n\u003ctd\u003eNormally Closed (NC) - circuit opens when magnet separates\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Gap Distance\u003c\/td\u003e\n\u003ctd\u003e15-25 mm (max separation for reliable switching)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Voltage \/ Current\u003c\/td\u003e\n\u003ctd\u003e100 V DC \/ 0.5 A (max)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContact Resistance\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;= 200 mOhm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWire Length\u003c\/td\u003e\n\u003ctd\u003e~30 cm (approx. 12 inches) per lead\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHousing Material\u003c\/td\u003e\n\u003ctd\u003eABS Plastic (white)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (each piece)\u003c\/td\u003e\n\u003ctd\u003e~28 x 14 x 8 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eSurface mount with adhesive tape or screws\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-10 degreesC to +50 degreesC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication Compatibility\u003c\/td\u003e\n\u003ctd\u003eArduino, Raspberry Pi, ESP32\/ESP8266, alarm panels, PLC inputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eOriginal \/ Authentic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e7-day warranty on manufacturing defects\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupport\u003c\/td\u003e\n\u003ctd\u003eEmail \u0026amp; WhatsApp 24\/7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNormally Closed (NC) Reed Switch:\u003c\/strong\u003e Circuit remains closed when the two halves are together (door\/window shut); opens instantly when separated, triggering your alarm or microcontroller input.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSimple Two-Wire Interface:\u003c\/strong\u003e No power supply needed for the sensor itself - just connect to any digital input or alarm zone; works with pull-up resistors on Arduino\/ESP boards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenerous Gap Tolerance:\u003c\/strong\u003e Reliably detects separation up to 15-25 mm, accommodating slight door\/window misalignments and thick frames.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact \u0026amp; Discreet Design:\u003c\/strong\u003e Small white ABS housing blends into door frames, window sills, cabinets, and enclosures without drawing attention.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Mounting Options:\u003c\/strong\u003e Attach using included adhesive backing for quick installation or use screws for permanent, vibration-resistant mounting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Voltage Compatibility:\u003c\/strong\u003e Rated up to 100 V DC, making it suitable for 3.3 V microcontroller logic, 5 V Arduino systems, 12 V alarm panels, and 24 V industrial PLCs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable \u0026amp; Maintenance-Free:\u003c\/strong\u003e Sealed reed switch with no moving mechanical parts exposed to wear - rated for millions of operations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile Wired Connection:\u003c\/strong\u003e Pre-soldered leads allow easy integration into breadboards, screw terminals, or direct soldering to PCBs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy Choose the MC-38 from The Tech Depot?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e100% authentic sensors sourced directly from trusted, authorized suppliers\u003c\/li\u003e\n\u003cli\u003e1-5 day shipping, 7-8 day delivery across India from our Bengaluru warehouse\u003c\/li\u003e\n\u003cli\u003eSame-day dispatch available for Bengaluru local orders\u003c\/li\u003e\n\u003cli\u003eExpert technical support to help you wire and integrate the sensor into your project\u003c\/li\u003e\n\u003cli\u003eTested and inspected before dispatch for reliable out-of-the-box performance\u003c\/li\u003e\n\u003cli\u003eCompetitive pricing with bulk discounts for installer and institutional orders\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eHow It Works\u003c\/h2\u003e\n\u003cp\u003eThe MC-38 consists of two pieces: a \u003cstrong\u003ereed switch unit\u003c\/strong\u003e (with wires) and a \u003cstrong\u003emagnet unit\u003c\/strong\u003e. When mounted adjacent to each other - typically the reed switch on the door\/window frame and the magnet on the moving door\/window - the magnetic field keeps the reed switch contacts \u003cstrong\u003eclosed\u003c\/strong\u003e. When the door or window opens and the magnet moves away beyond the gap distance, the reed contacts \u003cstrong\u003eopen\u003c\/strong\u003e, breaking the circuit. Your alarm system or microcontroller detects this state change and triggers the desired response (siren, notification, log entry, etc.).\u003c\/p\u003e\n\n\u003ch2\u003eProject Ideas\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDIY Home Security System:\u003c\/strong\u003e Connect multiple MC-38 sensors to an Arduino Mega or ESP32 to monitor all entry points; trigger a buzzer, send SMS alerts via GSM module, or push notifications through Wi-Fi\/MQTT.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmart Home Integration:\u003c\/strong\u003e Use with ESP8266\/ESP32 and platforms like Home Assistant, Blynk, or Tasmota to get real-time door\/window open\/close status on your smartphone.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRaspberry Pi Surveillance Hub:\u003c\/strong\u003e Pair with a Pi camera - when the sensor detects a door opening, automatically capture photos or start video recording and upload to cloud storage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCabinet \u0026amp; Safe Monitoring:\u003c\/strong\u003e Secure medicine cabinets, gun safes, or server rack doors; log every access event with timestamps for audit trails.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhen will I receive my order?\u003c\/summary\u003e\n\u003cp\u003eProducts ship within 1-5 days from our Bengaluru warehouse. Delivery within 7-8 days to most locations across India.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs technical support available?\u003c\/summary\u003e\n\u003cp\u003eYes, 24\/7 support via email and WhatsApp for setup, troubleshooting, and application guidance.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is your return policy?\u003c\/summary\u003e\n\u003cp\u003e7-day returns on manufacturing defects only. Full refund or replacement. Not applicable for user damage or misuse.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre bulk discounts available?\u003c\/summary\u003e\n\u003cp\u003eYes, wholesale pricing on orders of 10+ units. Contact us via WhatsApp or email for a custom quote.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003ch2\u003eBuy MC-38 Wired Magnetic House Security Alarm Sensor for Door and Windows Online in India\u003c\/h2\u003e\n\u003cp\u003ePurchase the \u003cstrong\u003eMC-38 Wired Magnetic House Security Alarm Sensor for Door and Windows\u003c\/strong\u003e online at \u003ca href=\"https:\/\/thetechdepot.in\"\u003eThe Tech Depot\u003c\/a\u003e - India's most trusted electronics components store. We deliver across all major cities including Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on \u003cstrong\u003eMC-38 Wired Magnetic House Security Alarm Sensor for Door and Windows\u003c\/strong\u003e with fast 1-5 day shipping from our Bengaluru warehouse. All products are 100% authentic, sourced from authorized distributors with 7-day warranty on manufacturing defects.\u003c\/p\u003e\n\u003cp\u003eLooking to buy \u003cstrong\u003eMC-38 Wired Magnetic House Security Alarm Sensor for Door and Windows\u003c\/strong\u003e at the best price in India? The Tech Depot offers competitive pricing, bulk discounts for orders of 10+ units, and dedicated technical support via email and WhatsApp. Whether you are a hobbyist, student, or professional engineer, we have everything you need for your electronics projects.\u003c\/p\u003e","brand":"The Tech Depot","offers":[{"title":"Default Title","offer_id":48746534469889,"sku":"TTD-17388","price":44.07,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/1577\/3185\/files\/b0f51fede63ea3abdfd5f9bad4313ec9.jpg?v=1778107012","url":"https:\/\/techdepot.in\/products\/mc-38-wired-magnetic-house-security-alarm-sensor-for-door-and-windows","provider":"Tech Depot India","version":"1.0","type":"link"}