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Proximity sensor, M12, 6-36V, PNP, Normally Open

Proximity sensor, M12, 6-36V, PNP, Normally Open

  • R 99.95
    Unit price per 
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Proximity sensor for auto bed levelling switch on a 3D printer or a limit switch on a CNC machine.  This proximity switch triggers when it is 4mm or less from a metal surface.


  • Thread size: M12
  • Thread length: 60mm
  • Trigger distance: 4mm
  • Sensor Type: PNP
  • Logic: Normally Open
  • Supply Voltage: 6 - 36V DC
  • Wires: 3 wires (Power - Brown, Ground - Blue, Signal - Black)
  • Cable length: 110mm
  • Model number: LJ12A3-4-Z/BY

Do I need a PNP or NPN proximity sensor? 

The following diagrams will show you which sensor you need.  Generally, NPN sensors are used for 3D printers and PNP sensors are used for CNC machines.




npn-proximity.gif        pnp-proximity.gif

If this product is purchased and no stock is available, our sales team will contact you with the option of a full refund or suggest similar alternatives which are in stock. If you would like to confirm stock before purchase, please contact our online sales team or email




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