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Leviton OSC20-U0W Ultrasonic Ceiling Occupancy Sensor, White
The Leviton OSC20-U0W is a ceiling-mount ultrasonic occupancy sensor designed to automatically detect motion within a monitored space and control connected lighting loads accordingly. Built around ultrasonic detection technology, this sensor is intended for installation directly into the ceiling, providing coverage of the room below for automatic lighting control. Finished in white to blend with standard ceiling tile and drywall installations, the OSC20-U0W is part of Leviton's line of occupancy and vacancy sensors used to improve energy efficiency in commercial and institutional spaces.
Key Features
- Ultrasonic Detection: Uses ultrasonic sensing technology to detect occupant motion within the covered space, supporting automatic on/off lighting control.
- Ceiling-Mount Design: Configured for ceiling installation, positioning the sensor to monitor activity across the room below.
- White Finish: Finished in white for a clean, unobtrusive appearance that coordinates with typical ceiling finishes.
- Leviton Build Quality: Manufactured by Leviton, a recognized supplier of occupancy sensing and lighting control devices for commercial and industrial facilities.
Technical Specifications
- Model: OSC20-U0W
- Detection Technology: Ultrasonic
- Mounting: Ceiling
- Color: White
- Refer to manufacturer documentation for complete technical specifications, including coverage area, voltage, and time-delay settings.
Typical Applications
- Commercial Office Lighting Control
- Conference Rooms and Meeting Spaces
- Institutional and Educational Facilities
- Energy-Efficient Lighting Retrofits
- Open-Plan Ceiling-Mounted Sensing Installations
Why Leviton?
Leviton is a widely used manufacturer of occupancy and lighting control devices for commercial and industrial buildings. The OSC20-U0W's ultrasonic ceiling-mount design reflects Leviton's focus on practical, space-efficient sensing solutions that support automated lighting control and energy management in professional installations.
Manufacturer Resources
Product Specs
- list_batch:
- LEV-20260924
- Product Type:
- Occupancy Sensor
- Connection Type:
- Ultrasonic
- Configuration:
- Ceiling-Mount
- Department:
- Electrical
- Product Subgroup:
- Lighting Controls & Sensors
- Product Color:
- White
- Product Group:
- Wiring Devices
Leviton OSC20-U0W – Frequently Asked Questions
1) Is the Leviton OSC20-U0W a ceiling sensor or a wall/switch-box sensor?
The OSC20-U0W mounts in the ceiling, not in a wall switch box. It looks down at the room below and controls the connected lighting load from there, so the wiring has to be run to the ceiling location rather than to the switch opening. If the job only has power at the switch box, a wall-mount sensor is the right device instead, for example the Pass & Seymour PW-302 Wattstopper wall occupancy sensor.
2) What is the difference between an ultrasonic ceiling sensor like the Leviton OSC20 and a PIR ceiling sensor?
The OSC20-U0W senses with ultrasonic technology, which reacts to movement disturbing a sound field rather than to body heat crossing a lens. That makes it the usual pick for restrooms, spaces with partitions, or rooms where someone sits still at a desk and a heat-based sensor would time out. A passive infrared ceiling unit, such as the Pass & Seymour CI305 Wattstopper low-profile PIR sensor rated for 1200 sq. ft. at 360 degrees, needs a clear line of sight but is less prone to nuisance tripping from air movement. Where you want both, a dual-technology head like the Wattstopper DT300 requires both signals before it switches.
3) What is the closest cross-brand equivalent to the Leviton OSC20-U0W ultrasonic ceiling occupancy sensor?
The Pass & Seymour UT3053 Wattstopper is the nearest match in technology and mounting. Like the OSC20-U0W, it is an ultrasonic ceiling-mount occupancy sensor; the UT3053 is a 24V unit rated for 360 degree coverage up to 2000 square feet and belongs to the Wattstopper UT-300 series. Both rely on ultrasonic sensing rather than infrared, so they respond to occupant motion in the same general way in enclosed rooms.
4) I need a ceiling occupancy sensor that also picks up minor motion through furniture and partitions - what should I look at instead of an ultrasonic-only unit?
For spaces where you want two sensing methods rather than ultrasonic alone, the Pass & Seymour DT300 Wattstopper is a dual technology ceiling occupancy sensor, 24V with 360 degree coverage. The Leviton OSC20-U0W uses ultrasonic detection only. Dual technology units combine sensing methods before switching, which is why they are specified for conference rooms and offices with cubicle partitions, while an ultrasonic-only sensor such as the OSC20-U0W is chosen where ultrasonic coverage alone suits the room.
5) Can I use the Pass & Seymour PW-302 in place of the Leviton OSC20-U0W?
No - they mount in different places. The PW-302 Wattstopper is a PIR dual-relay wall occupancy sensor, so it mounts on the wall and switches two relays. The Leviton OSC20-U0W is a ceiling-mount ultrasonic sensor intended for installation into the ceiling to cover the room below. If your drawing calls for a ceiling sensor, the PW-302 is not a drop-in; if you need two switched relays from a wall position, the PW-302 is the one to look at.
6) What exact part number do I order for the Leviton ultrasonic ceiling occupancy sensor in white?
Order Leviton OSC20-U0W. That is the full manufacturer part number and the only configuration of this item, so there is no separate color or voltage suffix to specify when you write the order.
7) Is an ultrasonic ceiling occupancy sensor a good choice for a conference room or private office?
Those are the spaces it is built for. Leviton lists the OSC20 for commercial office lighting control, conference and meeting rooms, institutional and educational buildings, and energy-efficient lighting retrofits. Ultrasonic sensing suits a conference room because it picks up small movement from people seated at a table rather than needing someone to walk across a lens.
8) I need 360 degree ultrasonic ceiling coverage for a large open area. What else does ZenSupply carry?
For a large open floor, the Pass & Seymour UT3053 Wattstopper ceiling mount ultrasonic sensor is the comparable option, rated 24V with 360 degree coverage up to 2000 square feet. The Leviton OSC20-U0W is the white ultrasonic ceiling unit; the UT3053 is the one to look at when you need a stated large-area coverage figure and a low-voltage 24V head wired to a power pack.
9) Is there a simpler PIR ceiling sensor I can use in place of the Leviton OSC20-U0W in an open area?
Yes. The Pass & Seymour CI305 Wattstopper is a low-profile ceiling PIR occupancy sensor with 360 degree coverage rated to 1200 square feet. It detects occupancy by passive infrared, which requires line of sight to the occupant, whereas the Leviton OSC20-U0W senses ultrasonically and does not depend on a clear sightline in the same way. The CI305 low-profile housing is also the choice when you want the sensor to sit close to the ceiling plane.
10) We are standardizing ceiling occupancy sensors across a school - which models cover 360 degrees from the ceiling?
Three ceiling-mount options cover 360 degrees: the Pass & Seymour DT300 Wattstopper dual technology sensor at 24V, the Pass & Seymour UT3053 Wattstopper ultrasonic sensor at 24V rated to 2000 square feet, and the Pass & Seymour CI305 Wattstopper low-profile PIR sensor rated to 1200 square feet. The Leviton OSC20-U0W is the ultrasonic ceiling-mount option in white, finished to coordinate with ceiling tile and drywall. Standardizing usually comes down to picking one detection technology per room type and holding to it.
11) Will the Leviton OSC20-U0W match a white ceiling tile or drywall ceiling?
Yes. The OSC20-U0W is finished in white, which is what you want against standard white acoustic tile or painted drywall. White is the only color offered on this model, so if a facility standard calls for a different sensor color this is not the part.
How fast can I get the Leviton OSC20-U0W delivered?
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Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Leviton OSC20-U0W come with a warranty?
Absolutely. The Leviton OSC20-U0W is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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