Keyes Reed Switch Sensor


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Detail about Keyes Reed Switch Sensor

The Keyes KY-025 Large Magnetic Module is a simple Reed switch design. Use the magnetic module with a digital interface to build magnetic field indicator lights.


  • Brand : Keyes
  • Model : KY-025
  • Operating voltage: DC 5 V 
  • Compatibility: Arduino
  • Color: Red + Blue 
  • Material: FR4
  • Dimensions: 40 x 15 x 13mm
  • Weight: 2.92g


  • having a signal output instruction; 
  • with mounting holes for easy fixed installation; 
  • the output valid signal is low; 
  • a sense of distance to stay away, as far as the effective sensing distance up to 5CM, (with field strength); 
  • high sensitivity magnetic sensors; 
  • the output switch circuit board can be directly connected to the microcontroller IO port; 
  • can be used for magnetic detection, position detection and other occasions.

Pins Map

  • A0 : Analog Output
  • G : Ground
  • + : Supply ( 5V )
  • D0 : Digital Ouput

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Keyes Reed Switch Sensor

Keyes Reed Switch Sensor

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