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Discontinued on May 20, 2022


OAC/VAC-U - Ultrasonic Ceiling Sensor Low Voltage

  • MicroSet self-adjusting Time Delay and sensitivity
  • Optional built-in light level sensor
  • Optional BAS/HVAC isolated relay
  • Products tested to NEMA WD 7 - 2011 Occupancy Motion Sensors Standard
  • Requires Manual On for activation
OAC/VAC-U - Ultrasonic Ceiling Sensor Low Voltage

OAC/VAC-U - Ultrasonic Ceiling Sensor Low Voltage


The MicroSet Ultrasonic Low Voltage Vacancy Ceiling Sensor increases energy savings by requiring a Manual On input to turn ON the lighting. The Ultrasonic Sensor uses the Doppler principle. It produces a low intensity, inaudible sound and detects changes in sound waves caused by motion, such as walking into the room, reaching for the telephone or turning in a chair. They are volumetric in nature and therefore not line-of-sight dependent.


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