Wattstopper LMLS-400-L Digital Single Zone On/Off and Dimming Closed Loop Photosensor with extended tube

WattstopperSKU: LMLS-400-L

Out Of Stock


The LMLS-400 is a closed loop photosensor that measures the ambient light level in order to automatically switch or dim one zone of lighting. It is part of a Digital Lighting Management (DLM) system and sends light level signals to control loads connected to DLM on/off or dimming room controllers. The LMLS-400 has a photodiode with an extended range of 1-10,000 footcandles (fc), and photopic correction to mimic the human eye, for precise measurement of visible light.


  • Type: Single Zone, Closed Loop
  • Color: White
  • Typical Applications: Private Offices, Cafeterias, Classrooms Atriums, Lobbies
  • LightOutput 1FCD: On/Off, Bi-level, Tri-level or Dimming Control
  • Votlage: 24VDC
  • Daylight responsive on/off, bi-level, tri-level or dimming control for one lighting zone
  • Component of Digital Lighting Management integrated control system
  • 100 degree spatial response for optimal detection of ambient light level
  • Automatic calibration and configuration
  • Photodiode corrected to match the photopic response of the human eye
  • Can be calibrated in any daylight condition



Spec Sheet

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