{"product_id":"magnetic-door-sensor-reed-switch","title":"Magnetic Door Sensor Reed Switch – Door \u0026 Window Contact Sensor","description":"\u003ch2\u003eMagnetic Door Sensor Reed Switch\u003c\/h2\u003e\u003cp\u003eWant to know when a door, window or drawer opens? This magnetic reed switch sensor comes in two parts: a switch and a magnet. When the magnet moves away, the switch changes state, and your Arduino, ESP32 or alarm system knows something has opened.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eTwo-piece design: a reed switch body and a matching magnet\u003c\/li\u003e\n\u003cli\u003eWired sensor with lead wires, works like a simple on\/off switch\u003c\/li\u003e\n\u003cli\u003eNo power needed by the sensor itself\u003c\/li\u003e\n\u003cli\u003eCompact plastic housing, easy to mount with screws or double-sided tape\u003c\/li\u003e\n\u003cli\u003eWorks with Arduino, ESP8266, ESP32, Raspberry Pi and alarm panels\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCommon Uses\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eHome and shop security alarms\u003c\/li\u003e\n\u003cli\u003eDoor and window open\/close alerts\u003c\/li\u003e\n\u003cli\u003eSmart home automation, like turning lights on when a door opens\u003c\/li\u003e\n\u003cli\u003eCabinet, drawer and gate status monitoring\u003c\/li\u003e\n\u003cli\u003eIoT and university projects\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTips\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMount the magnet on the moving part (door) and the switch on the fixed frame, lined up closely.\u003c\/li\u003e\n\u003cli\u003eWhen connecting to a microcontroller, use a pull-up resistor (or the board's internal pull-up) on the input pin.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePackage Includes\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e1 × Magnetic Reed Switch Sensor (switch + magnet)\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eAvailable with delivery across Pakistan, including Karachi, Lahore, Islamabad, Rawalpindi, Faisalabad and Peshawar.\u003c\/p\u003e","brand":"Mcustore","offers":[{"title":"Default Title","offer_id":47282311725228,"sku":"MCU-REED-DOOR","price":260.0,"currency_code":"PKR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/0214\/4940\/files\/MagneticDoorSensorSwitchMagneticRead.webp?v=1790354483","url":"https:\/\/www.mcustore.com\/products\/magnetic-door-sensor-reed-switch","provider":"Mcustore","version":"1.0","type":"link"}