Wattstopper’s low profile DT-355 dual technology occupancy sensor combines the benefits of passive infrared (PIR) and ultrasonic technologies. The sensor mounts on the ceiling with a flat; unobtrusive appearance and provides 360 degrees of coverage.

• Advanced control logic based on RISC micro-controller
• Provides: Detection Signature Processing eliminates false triggers and provides immunity to RFI and EMI – Walk-through mode turns lights off 3 minutes after the area is initially occupied – ideal for brief visits such as mail delivery – Built-in light level sensor featuring simple; one-step setup
• Zero-crossing for long relay life
• Ultrasonic diffusion technology spreads coverage to a wider area (patent pending)
• DIP switch simplifies sensor adjustments
• LEDs indicate occupancy detection
• Uses existing line voltage wiring and doesn’t require a power pack
• Six occupancy logic options give users the ability to customize control to meet application needs
• BAA/TAA-compliant models available
• Sensor coverage tested to NEMA Guide Publication WD 7-2000
• 120/230 (single phase)/277/347 VAC; 50/60 Hz