UT-305-1 Occupancy Sensor – Ultrasonic Ceiling Sensor

The Wattstopper UT-305-1 is an ultrasonic ceiling occupancy sensor designed to automatically control lighting based on room occupancy. Ideal for integration by electrical distributors and lighting solutions providers, this sensor mounts unobtrusively on ceilings, providing 360° coverage for spaces such as offices, restrooms, and hallways. It operates on low voltage (24 VDC) and is suitable for wire and cable installations requiring precise occupancy detection. The UT-305-1 supports both automatic and manual-on operation when used with compatible power packs, making it a reliable component for switchgear suppliers focusing on energy-efficient lighting control.

Specifications

• Manufacturer: WattStopper
• Manufacturer Part #: UT3051
• Mounting Type: Ceiling
• Finish: White
• Voltage: 24 VDC
• Coverage Area: 500 ft² (46.5 m²)
• Current Consumption: 30 mA
• Dimensions: 4.5” diameter x 1” depth (114.3 mm x 25.9 mm)
• Operating Frequency: 40 kHz ultrasonic
• Time Delay Options: 5, 10, 15, 20, or 30 minutes (factory set to 20 minutes)
• UL and cUL Listed
• Weight: 0.35 lbs
• Warranty: Five years

Features

• Automatic lighting control based on occupancy detection
• 360° ultrasonic coverage with patented diffusion technology
• Flat, low-profile ceiling mount design
• Manual-on operation supported via low-voltage momentary switch
• DIP switch selectable fixed time delays to reduce occupant dissatisfaction
• Walk-through mode for energy savings in transient traffic areas
• Plug terminal wiring for quick and easy installation
• Clip mounting system for simple ceiling tile installation
• LED indicator for occupancy detection status
• Available with isolated relay for building automation system (BAS) or HVAC integration
• BAA/TAA-compliant models available

Downloads & Links

• Data Sheet
• Brochure
• Specification/Technical
• Installation/Operator
• CAD Drawing
• Other 1