top of page


A proximity sensor is a sensor able to detect the presence of nearby objects without any physical contact. A proximity sensor often emits an electromagnetic field or a beam of electromagnetic radiation, and looks for changes in the field or return signal.



Due to their reliability and efficiency, inductive proximity switches are used whenever a metal object has to be detected within just a few millimeters:

  • Presence detection of a machine component
  • Ultra precise referencing of the zero position of a moving machine component (e.g. in robotics)
  • Detection of different positions (e.g. limit switches)
  • Counting metal objects (e.g. in component feed or conveyor technology)
  • Presence detection of objects in process
  • Rotary speed measurement on metal gear wheel



Detection distance: 4mm

Voltage: DC 6-36V

Polarity: NPN  NO

current: 150ma

Dimention: 12 x 50mm

Black wire or gray wire Length:about 1m

Package include: 1 x LJ12A3-4-Z/BX


LJ12A3-4-Z/BX Inductive Proximity Sensor Switch NPN 12mm

    bottom of page