{"product_id":"lm393-magnetic-reed-switch-sensor-module-digital","title":"LM393 Magnetic Reed Switch Sensor Module (3.3V-5V) Digital Output","description":"\u003ch2 id=\"reliable-magnetic-detection-for-diy-electronics\" class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eReliable Magnetic Detection for DIY Electronics\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eThis sensor module utilizes a normally open reed tube to detect the presence of a magnetic field within a 1.5cm range. When a magnet approaches, the reed switch closes, and the module outputs a low-level digital signal. It is an excellent, easy-to-use component for building custom door sensors, window alarms, or interactive Arduino and Raspberry Pi projects.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 id=\"clean-signal-output-with-lm393-comparator\" class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eClean Signal Output with LM393 Comparator\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eThe onboard LM393 voltage comparator ensures the digital output signal is clean, stable, and features an excellent waveform. With a driving ability exceeding 15mA, the digital output (DO) pin can directly interface with microcontrollers or drive a relay module to control higher voltage circuits without requiring additional amplification.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 id=\"technician-tip\" class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eTechnician Tip\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eAlways double-check your wiring before applying power, as reversing the VCC and GND connections will permanently damage the LM393 chip. The technical team at Sun Cheong Computer Co. Ltd. recommends keeping your triggering magnet within 1.5cm of the glass reed tube for reliable activation, as distances beyond this may result in missed triggers or insensitive operation.\u003c\/span\u003e\u003c\/p\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":68248479498391,"sku":"21TS001575","price":15.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/files\/lm393-magnetic-reed-switch-sensor-module-top.jpg?v=1793779815","url":"https:\/\/scccltd.com\/products\/lm393-magnetic-reed-switch-sensor-module-digital","provider":"Sun Cheong Computer Company Limited","version":"1.0","type":"link"}