Leviton OSFHU-ITW PIR High Bay Occupancy Sensor with Aisle Mask, 1600 Sq. Ft. Coverage
The Leviton OSFHU-ITW is a PIR (passive infrared) commercial-grade high bay occupancy sensor engineered for large, open commercial and industrial spaces. It delivers detection coverage of up to 1600 sq. ft. and includes a built-in aisle mask function that lets installers narrow the detection field to match long, narrow aisle configurations commonly found in high-bay racking and warehouse layouts. Designed for commercial-grade reliability, the OSFHU-ITW helps facility managers and electrical contractors automate lighting control in high-ceiling environments, reducing wasted energy in areas that are only intermittently occupied.
Key Features
- High Bay Coverage: Up to 1600 sq. ft. of PIR detection range, sized for large open commercial and industrial spaces such as warehouses and distribution centers.
- PIR Sensing Technology: Passive infrared detection technology provides dependable occupancy sensing to drive automated lighting control decisions.
- Aisle Mask Function: Integrated aisle masking narrows the sensor's detection pattern to suit long, narrow aisles typical of high-bay racking and warehouse storage layouts, reducing false triggers from adjacent aisles.
- Commercial Grade Construction: Built for the demanding duty cycles of commercial and industrial facilities where consistent, dependable occupancy detection is essential.
- High Bay Mounting Design: Purpose-built for installation at elevated ceiling heights typical of high-bay warehouse and distribution environments.
- Energy-Saving Automation: Automatically signals connected lighting controls to cut energy use in unoccupied zones of large commercial and industrial facilities.
- Facility-Ready Design: Suited for new construction and retrofit lighting control projects across warehouse, distribution, and industrial building types.
Technical Specifications
- list_batch: LEV-20260730
Typical Applications
- Warehouse and Distribution Center Lighting Control
- High-Bay Industrial Facilities
- Storage Aisle and Racking Areas
- Commercial and Industrial Occupancy-Based Lighting Automation
- New Construction and Retrofit Lighting Control Projects
- Manufacturing and Logistics Facility Lighting Management
Why Leviton?
Leviton is a recognized name in commercial-grade lighting control, and the OSFHU-ITW brings that reliability to demanding high-bay environments. With PIR sensing tuned for large-area coverage and an aisle mask feature purpose-built for warehouse racking layouts, this sensor helps facility teams and electrical contractors automate lighting with confidence across commercial and industrial applications where dependable occupancy detection at scale is essential.
Manufacturer Resources
Technical Information
Product Specs
- Product Type:
- Occupancy Sensor
- Voltage Rating:
- 277/347V
- Grade:
- Commercial
- Product Color:
- White
- Department:
- Electrical
- Product Group:
- Wiring Devices
- Product Subgroup:
- Switches
Leviton OSFHU-ITW – Frequently Asked Questions
1) Will the Leviton OSFHU-ITW occupancy sensor work on a 277V lighting circuit?
Yes. The OSFHU-ITW is rated 277/347V, so it drops onto standard commercial 277V high bay lighting circuits and onto 347V circuits common in Canadian facilities. It is not a 120V device, so if your warehouse lighting runs at 120V this is the wrong sensor for that circuit.
2) How much floor area does the Leviton OSFHU-ITW high bay sensor cover?
Up to 1600 sq. ft. of PIR detection. That is sized for one open high bay zone, so on a large warehouse floor you lay out multiple sensors rather than trying to cover the building with one. In racked aisles the effective footprint is narrower, because the aisle mask deliberately trims the pattern down to the aisle.
3) What does the aisle mask on a high bay occupancy sensor actually do?
It narrows the sensor's detection pattern from a broad open-area footprint down to a long, narrow strip that follows a single aisle. In a racked warehouse that stops the sensor seeing motion in the next aisle over and holding your lights on in a zone nobody is in. If your space is open floor with no racking, you leave the mask off and use the full 1600 sq. ft. pattern.
4) Is PIR or ultrasonic the right sensing technology for a warehouse high bay?
The OSFHU-ITW uses passive infrared, which reads body heat moving across the detection pattern. PIR needs line of sight, which suits open high bay and aisle layouts where a forklift or a picker crosses the pattern. Where you have obstructions, partitions, or people who sit still for long stretches, an ultrasonic or dual technology head holds better. ZenSupply carries the Pass & Seymour UT3053 Wattstopper ceiling mount ultrasonic sensor at 2000 sq. ft. and the Wattstopper DT300 dual technology ceiling sensor for those cases.
5) Can I use the Leviton OSFHU-ITW in a standard 9 foot office ceiling?
No, that is the wrong application. The OSFHU-ITW is built for elevated high bay mounting in warehouse and distribution ceilings, and its lens pattern is aimed at that mounting height. For a normal commercial ceiling use a low profile ceiling sensor such as the Pass & Seymour CI305 Wattstopper PIR at 360 degrees and 1200 sq. ft., or the DT300 dual tech ceiling sensor.
6) What is the closest alternative to the Leviton OSFHU-ITW high bay sensor for a low ceiling open office instead of a warehouse?
The Leviton OSFHU-ITW is a PIR high bay occupancy sensor built for elevated ceiling heights in warehouse and distribution environments, with up to 1600 sq. ft. of coverage and an aisle mask that narrows the pattern for racking aisles. For a standard-height ceiling in an open office, the Pass & Seymour CI305 Wattstopper is a low-profile ceiling PIR occupancy sensor with a 360 degree pattern covering 1200 sq. ft. Both use passive infrared sensing, so both need line of sight to motion, but the CI305 spreads its coverage in a full circle rather than projecting down a high bay aisle.
7) The Leviton OSFHU-ITW is PIR only and misses people working quietly behind racking. What sensor picks up smaller motion?
The OSFHU-ITW relies on passive infrared, which needs visible movement across the detection pattern. Where occupants are stationary or screened by obstructions, two other ceiling sensors change the sensing method: the Pass & Seymour UT3053 Wattstopper is an ultrasonic ceiling mount sensor with 360 degree coverage over 2000 sq. ft. on 24V, and the Pass & Seymour DT300 Wattstopper is a dual technology 360 degree ceiling sensor on 24V that combines technologies rather than using infrared alone. Both are low-voltage 24V devices, so they expect a separate power pack, while the OSFHU-ITW is rated 277/347V.
8) Can I wire a Wattstopper CI305 or DT300 directly onto my 277V high bay circuit the way the Leviton OSFHU-ITW goes in?
No. The Leviton OSFHU-ITW carries a 277/347V rating, so it is intended for line voltage high bay circuits. The Pass & Seymour DT300 Wattstopper dual technology ceiling sensor and the Pass & Seymour UT3053 Wattstopper ultrasonic ceiling sensor are both 24V devices, which means a low-voltage control wiring scheme with a separate power pack switching the load. If the design is line voltage at the sensor, the OSFHU-ITW matches that approach and the 24V Wattstopper heads do not.
9) Can the OSFHU-ITW be added to existing warehouse lighting, or is it new construction only?
Both. Leviton positions the OSFHU-ITW for new construction and retrofit lighting control projects in warehouse, distribution, and industrial buildings. The controlling factor on a retrofit is the circuit voltage: it has to be a 277V or 347V lighting circuit.
10) What is the exact part number to order this Leviton high bay sensor?
Leviton OSFHU-ITW. That single catalog number covers the PIR high bay sensor with the aisle mask, white, 277/347V. There is no separate handing, color, or voltage variant to specify with it.
11) I need more than 1600 sq. ft. from a single ceiling sensor. What covers a larger area than the Leviton OSFHU-ITW?
The Leviton OSFHU-ITW covers up to 1600 sq. ft. with PIR sensing plus an aisle mask for narrow racking runs. For a larger single-head footprint, the Pass & Seymour UT3053 Wattstopper ceiling mount ultrasonic sensor is rated for 2000 sq. ft. with 360 degree coverage at 24V. Note the trade: the UT3053 spreads coverage symmetrically and does not offer the aisle masking that lets the OSFHU-ITW concentrate its pattern down a single aisle and avoid triggering from the next one over.
12) Is the Pass & Seymour CI305 a direct substitute for the Leviton OSFHU-ITW in a warehouse aisle?
It is not a like-for-like swap. Both are PIR ceiling occupancy sensors, but the Leviton OSFHU-ITW is a commercial grade high bay unit designed for elevated mounting heights, covers up to 1600 sq. ft., and includes an aisle mask so the detection field can be narrowed to a single racking aisle. The Pass & Seymour CI305 Wattstopper is a low-profile ceiling PIR sensor with a fixed 360 degree pattern at 1200 sq. ft. In a racked aisle at high-bay mounting height, the 360 degree pattern is the difference that matters, since it cannot be shaped to exclude adjacent aisles.
13) For a facility standardizing on one ceiling occupancy sensor across offices and the warehouse, how do the Leviton and Wattstopper options split up?
They split by ceiling height and sensing method. The Leviton OSFHU-ITW is the high bay PIR unit, commercial grade, white, rated 277/347V, covering up to 1600 sq. ft. with an aisle mask for racking runs. For the standard-height side of the building, the Pass & Seymour CI305 Wattstopper covers 1200 sq. ft. in a 360 degree PIR pattern, the Pass & Seymour DT300 Wattstopper is a 24V dual technology 360 degree head, and the Pass & Seymour UT3053 Wattstopper is a 24V ultrasonic 360 degree head at 2000 sq. ft. A single part number will not cover both mounting heights well, so most facilities specify the OSFHU-ITW for high bay and a 360 degree ceiling head elsewhere.
14) What color is the Leviton OSFHU-ITW sensor, and is it a commercial grade device?
White housing, and it is a commercial grade wiring device, not a residential one. That matters on a spec job where the drawing calls out commercial grade lighting controls and where the sensor has to hold up to industrial duty cycles.
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Does the Leviton OSFHU-ITW come with a warranty?
Absolutely. The Leviton OSFHU-ITW is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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