OS-551

Low Voltage Occupancy Sensor

The OS‑551 is a low voltage occupancy sensor designed to signal the occupancy status for area lighting, or HVAC control, for energy efficient building management.

 

  • Cutting edge dual element infrared sensor
  • 24 VAC/DC low voltage power operation
  • Form C dry contact relay output
  • Multi‑directional mounting bracket included
  • Temperature compensation sensitivity
  • Superior RFI and EMI immunity
  • Walk test and sensing status LED indicator
  • Easy programmable ON and OFF delays
  • Available for wall/corner/ceiling mount
Product Information
OS-551 Datasheet
OS-551 Installation Instruction

  • Cutting edge dual element infrared sensor
  • 24 VAC/DC low voltage power operation
  • Form C dry contact relay output
  • Multi‑directional mounting bracket included
  • Temperature compensation sensitivity
  • Superior RFI and EMI immunity
  • Walk test and sensing status LED indicator
  • Easy programmable ON and OFF delays
  • Available for wall/corner/ceiling mount

Product Information
OS-551 Datasheet
OS-551 Installation Instruction


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