List of Sensors - Proximity, Presence

Proximity, Presence

  • Alarm sensor
  • Doppler radar
  • Motion detector
  • Occupancy sensor
  • Proximity sensor
  • Passive infrared sensor
  • Reed switch
  • Stud finder
  • Triangulation sensor
  • Touch switch
  • Wired glove

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Famous quotes containing the word presence:

    “The sun rarely shines in history, what with the dust and confusion; and when we meet with any cheering fact which implies the presence of this luminary, we excerpt and modernize it.”
    —Henry David Thoreau (1817–1862)