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Leone 44 mm SPDT Normally Closed Magnetic Reed Switch

Leone 44 mm SPDT Normally Closed Magnetic Reed Switch

SKU SKU Code: # LL100

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It is a 44mm single polar double throw clear glass magnetic reed switch. It's a passive electrical switching component that regulates the flow of electricity in a circuit. It consists of a glass envelope containing two ferrous elastic reeds and an insert gas or a vacuum. It's reeds are normally closed and two leads connected with one reed in parallel .Both reeds are normally apart but once the magnetic field approaches the sensor, they will come together, completing the circuit. Electromagnetic relays, weighing devices, level meters, and other devices can be used to detect if a washing machine, refrigerator, or photocopier door is open or closed. It works with Arduino, Raspberry pi, PIC, and other microcontrollers. It can generate only digital output not analog output.


  • Home and office automation.
  • Door or windows sensor.
  • Laptop and mobile phone.
  • Tamper proofing system.
  • Auto shut-off.


  • Small Module.
  • Very easy to use.
  • Direct connection in the circuit.
  • Magnetic sensitivity.
  • Its reeds are normally closed
  • Low power consumption
    Brand Leone
    Type Magnetic  Reed Switch 
    Length 44mm
    Thickness 11mm
    Contact resistance 0.3 Ohm
    Glass envelope color White
    No. of leads 3
    Quantity 1
    Reeds material Ferrous elastic 
    No. of reeds 3
    Lead Dia 1.5mm