{"product_id":"leviton-pir-high-bay-occupancy-sensor-with-3-lenses","title":"Leviton PIR High-Bay Occupancy Sensor with 3 Lenses","description":"\u003cp\u003e\u003cstrong\u003eThe Leviton OSFHU-ITW is a fixture-mounted passive infrared (PIR) sensor that automates high-bay lighting with three interchangeable lenses for up to 40 ft mounting heights.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eBuilt for warehouses, manufacturing floors and other tall-ceiling environments, this compact Leviton occupancy sensor installs directly into an industrial fluorescent luminaire or a 1\/2\" electrical knockout. It combines a self-contained relay with passive infrared detection to switch an individual light fixture on or off when people enter or leave the coverage zone. The unit ships with three lens options—high-bay, low-bay and an aisle mask—so one device can be tailored to different ceiling heights and aisle layouts.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the OSFHU-ITW detect movement at high mounting heights?\u003c\/h3\u003e\n\u003cp\u003eThe sensor uses passive infrared technology to sense changes in heat patterns created by moving objects against the background environment. Because PIR responds to thermal motion rather than visible light, it works in dark or lit spaces and is effective at elevated positions when paired with the correct lens.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePassive infrared detection picks up motion by measuring temperature changes.\u003c\/li\u003e\n  \u003cli\u003eThree interchangeable lenses adjust the detection pattern for high-bay, low-bay or aisle use.\u003c\/li\u003e\n  \u003cli\u003eReliable coverage designed for mounting heights up to 40 feet.\u003c\/li\u003e\n  \u003cli\u003eOptional offset adapter (OSFOA-00W) increases field-of-view for deep fixtures.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow simple is installation for a fixture-mounted solution?\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward: the sensor mounts into a standard 1\/2\" knockout on the fixture or into a junction box using the supplied locknuts. A built-in quicksnap on the 1\/2\" nipple reduces fastener work, and the 21\" wire leads give installers room to reach ballast connections without extra wire or connectors.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMounts directly into industrial fluorescent fixtures or 1\/2\" knockout boxes.\u003c\/li\u003e\n  \u003cli\u003eQuicksnap locking mechanism simplifies attachment and saves installation time.\u003c\/li\u003e\n  \u003cli\u003eIncludes 21\" wire leads to access ballast ends without additional materials.\u003c\/li\u003e\n  \u003cli\u003eNo separate relay or external control gear required for each fixture.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich lens should I choose for my space and what coverage can I expect?\u003c\/h3\u003e\n\u003cp\u003eThe OSFHU-ITW includes three lens patterns so you can tailor detection to the room geometry: a 360° high-bay lens for taller ceilings, a 360° low-bay lens for moderate heights, and an aisle mask to narrow the coverage along rack rows. With the appropriate lens installed, the sensor maintains dependable occupancy coverage up to 40 feet above the floor.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e360° high-bay lens for open spaces with ceilings up to the rated 40 ft.\u003c\/li\u003e\n  \u003cli\u003e360° low-bay lens for shorter mounting heights and more concentrated coverage.\u003c\/li\u003e\n  \u003cli\u003eAisle mask narrows the beam for long, narrow aisles between shelving.\u003c\/li\u003e\n  \u003cli\u003eUse an offset adapter if deep fixture bodies block the sensor’s natural field-of-view.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat environments and conditions is this model suited for?\u003c\/h3\u003e\n\u003cp\u003eThe standard OSFHU-ITW is intended for typical industrial and commercial high-bay settings. Leviton also offers a cold-storage variant rated down to -40°F for refrigerated environments. The fixture-mounted design makes it especially useful where individual fixture control is preferred over centralized sensors.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIdeal for warehouses, factories, gymnasiums and other high-ceiling areas.\u003c\/li\u003e\n  \u003cli\u003eCold-storage model available separately for subfreezing applications.\u003c\/li\u003e\n  \u003cli\u003eFixture-mounted relay provides per-fixture switching without extra control cabinets.\u003c\/li\u003e\n  \u003cli\u003eInterchangeable lenses adapt the same basic unit to multiple layout types.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: Facility managers, electrical contractors and retrofit teams who need reliable, per-fixture occupancy sensing in high-ceiling spaces will appreciate the OSFHU-ITW. It’s a practical choice when you want to reduce wasted lighting runtime, simplify wiring at the fixture, and adapt detection geometry with interchangeable lenses. Choose the cold-storage variant if temperatures drop well below freezing, or add the offset adapter when fixtures obstruct the sensor’s typical sightlines.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can the OSFHU-ITW be used on refrigerated ceilings?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The standard OSFHU-ITW is for typical high-bay spaces; Leviton offers a cold-storage model rated to -40°F for refrigerated applications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does it require extra wiring or external relays?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No—it's a self-contained sensor with an internal relay and 21\" wire leads for direct connection to the fixture ballast.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Leviton","offers":[{"title":"Default Title","offer_id":48413418651805,"sku":"B001U3Z46Q","price":49.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/9596\/1757\/files\/leviton-high-bay-front-mount.jpg?v=1781264571","url":"https:\/\/nexoltic.com\/products\/leviton-pir-high-bay-occupancy-sensor-with-3-lenses","provider":"Nexoltic","version":"1.0","type":"link"}