WT-600 Occupancy Sensor – Ultrasonic Ceiling Sensor

The WT-600 Occupancy Sensor by WattStopper is a 24VDC ultrasonic ceiling sensor designed to provide reliable occupancy detection for lighting control in commercial and office environments. Utilizing advanced 32 kHz ultrasonic Doppler technology, this sensor automatically switches lighting on and off based on detected occupancy, making it ideal for integration with electrical distributors, lighting solutions, wire and cable systems, and switchgear suppliers. It is commonly used in enclosed office spaces, open office zones, restrooms, and storage areas to optimize energy savings and automate lighting control.

Specifications

• Voltage: 24VDC
• Current Consumption: 37mA Max
• Maximum Output Current: 100mA
• Isolated Relay Rating: 1A @ 24VDC (resistive load)
• Ultrasonic Frequency: 32 kHz
• Time Delay Adjustment: 15 seconds to 30 minutes (DIP switch adjustable)
• Sensitivity Adjustment: Trimpot (min to max)
• Coverage: 360° one-sided, up to 600 sq ft walking motion coverage
• Mounting Type: Ceiling Tile Mount
• Dimensions: Approximately 4.8" diameter x 1.5" depth (122mm x 38mm)
• Finish: White
• Compliance: UL and cUL Listed
• Warranty: Five-year limited warranty

Features

• Advanced Signal Processing (ASP) circuitry reduces false triggers caused by air turbulence
• Omni-directional 360° ultrasonic coverage with Doppler motion detection
• Isolated relay output enables interface with HVAC, EMS, or additional lighting loads
• User-adjustable DIP switches for time delay and sensitivity settings
• Red LED indicator flashes upon motion detection and stays lit in override mode
• Automatic or manual-on operation when used with compatible WattStopper power packs
• Mounts securely on vibration-free ceiling tiles with keyhole or acoustic tile mounting options
• Recommended sensor placement guidelines to maximize coverage and reduce false triggers
• Compatible with low-voltage wiring systems for integration with building automation

Downloads and Links

• WT-600 Installation Instructions (PDF)
• WattStopper Product Catalog and Specifications