WattStopper WattStopper DT-305 Ceiling Sensor

Description

The WattStopper DT-305 Ceiling Sensor combines the benefits of passive infrared (PIR) and ultrasonic technologies to detect occupancy and reduce false triggers. Sensors have a flat, unobtrusive appearance and provide 360 degrees of coverage. They easily mount to ceiling tiles or junction boxes. Ideal applications include classrooms, open office spaces, large offices, and computer rooms.

These WattStopper sensors use power packs for auto-on/off or low voltage switches for manual-on (both sold separately). In addition, the DT-300 family of sensors easily field modify to trigger lights on when either technology or both detect occupancy, or to require both technologies to hold lighting on. Once lights are on, detection by either technology holds them on. Lights turn off when occupancy is not detected for the length of the specified time delay.

• Sensors work with low-voltage momentary switches to provide manual control
• Patented ultrasonic diffusion technology spreads coverage to a wider area
• LEDs indicate occupancy detection
• Uses plug terminal wiring system for quick and easy
• Eight occupancy logic options provide the ability to customize
• Available with isolated relay for integration with BAS or HVAC
• BAA/TAA-compliant models available

PIR vs. Ultrasonic

PIR technology senses motion via a change in infrared energy within the controlled area. Ultrasonic uses 40KHz high frequency ultrasound.

Click here to shop other items compatible with the WattStopper DT-305 ceiling sensor or click here for a helpful video.

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 WS-Custheet-DT-300

• 24 VDC/VAC
• Ultrasonic frequency: 40kHz
• Time delays: 5, 10, 15, 20, or 30 minutes, Walk-through/Test Modes
• Sensitivity adjustment: High/low (PIR); variable with trim pot (ultrasonic)
• Built-in light level sensor: 10 to 300 footcandles (107.6 to 3,229.2 lux)
• Low-voltage, momentary switch input for manual on or off operation
• DT-300 contains an isolated relay with N/O and N/C outputs; rated for 1 Amp @ 30 VDC/VAC
• Multi-level Fresnel lens provides 360° coverage
• Mounting options: ceiling tile; 4” octagonal J-box, 1.5” deep
• Max DT-300s per power pack: B=2, BZ=3 Max DT-305s per power pack: B=3, BZ=4
• Dimensions: 4.50” diameter x 1.02” deep (114.3mm x 25.9mm)
• UL and cUL listed
• Five-year warranty

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