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Sensors

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  • 0-10V Mw 120-277V Sensor Dip & Rc (Optional Remote Control WEC-3RC) 0-10V Mw 120-277V Sensor Dip & Rc (Optional Remote Control WEC-3RC)
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    0-10V Mw 120-277V Sensor Dip & Rc (Optional Remote Control WEC-3RC)

    WM-WEC-3MDR-42
    $35.55
    MSRP: $40.16
    Introducing the WEC-3MDR-42: Innovative Lighting Control Sensor Discover the WEC-3MDR-42, an advanced lighting control sensor engineered to enhance your illumination efficiency. As a key element of the 600W Max series, this sensor utilizes a 0-10V MW...
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    $35.55
    MSRP: $40.16
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  • Swivel Arm Photocell 120V - PC-1S
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    Swivel Arm Photocell 120V - PC-1S

    WM-PC-1S
    $19.85
    MSRP: $22.78
    Swivel Arm Photocell PC-1S – Enhance Your Outdoor Lighting Efficiency The Swivel Arm Photocell, model PC-1S, stands as a reliable and essential component for optimizing outdoor lighting systems. This advanced device is designed to bring efficiency and...
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    $19.85
    MSRP: $22.78
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  • Remote Control for LFX Area Lights Motion Sensor, WEC-3MR-4 & WEC-3MR-3
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    Remote Control for LFX Area Lights Motion Sensor, WEC-3MR-4 & WEC-3MR-3

    WM-WEC-8RC
    $17.00
    MSRP: $18.78
    Remote Control for LFX Area Lights Motion SensorEffortlessly enhance your outdoor area lighting with our remote control, designed specifically for LFX Area Lights with motion sensors. Fully compatible with models WEC-3MR-4 and WEC-3MR-3, this remote...
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    $17.00
    MSRP: $18.78
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  • OPT-SEN-SCX2 Programmable Microwave Bi-Level Occupancy Sensor, SCX2
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    OPT-SEN-SCX2 Programmable Microwave Bi-Level Occupancy Sensor, SCX2

    WM-OPT-SEN-SCX2
    $71.30
    Programmable Microwave Bi-Level Occupancy Sensor SCX2 The Programmable Microwave Bi-Level Occupancy Sensor SCX2 is the ultimate solution for energy-efficient lighting control. This advanced occupancy sensor optimizes lighting by detecting motion and...
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    $71.30
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  • 75 Watt Dual-Tap Landscape Transformer with Timer and Photocell Slide Sensor 75 Watt Dual-Tap Landscape Transformer with Timer and Photocell Slide Sensor
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    75 Watt Dual-Tap Landscape Transformer with Timer and Photocell Slide Sensor

    WM-TR-75W-DT-TPC-SS
    $234.15
    MSRP: $260.78
    75W Dual-Tap Landscape Lighting Transformer - Ideal for Outdoor Illumination Enhance your outdoor lighting setup with our 75W Dual-Tap Landscape Lighting Transformer, designed to deliver consistent and efficient power to all your lighting fixtures...
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    $234.15
    MSRP: $260.78
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  • Dusk to Dawn Swivel Photocell
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    Dusk to Dawn Swivel Photocell, 120Vac, 1800W

    WM-PC-2S
    $19.85
    MSRP: $22.78
    Dusk to Dawn Swivel Photocell - Automatic Outdoor Lighting Control Enhance your outdoor lighting setup with the Dusk to Dawn Swivel Photocell, a top-tier solution for energy-efficient and automatic lighting control. Designed to activate lights at dusk...
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    $19.85
    MSRP: $22.78
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  • Photocell Switch, Light Control, Plug-in Connection, IP66 Rated Photocell Switch, Light Control, Plug-in Connection, IP66 Rated
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    Photocell Switch, Light Control, Plug-in Connection, IP66 Rated

    WSD-OJ-M715-B
    $11.50
    MSRP: $30.00
    The OJ-M715-B Photocell Switch is a versatile light control solution, designed to enhance outdoor lighting systems with energy-saving automatic control. Compatible with standard dimming receptacles, this switch is ideal for various settings. Key...
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    $11.50
    MSRP: $30.00
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  • 100 Watt Dual-Tap Landscape Transformer with Timer and Photocell Slide Sensor 100 Watt Dual-Tap Landscape Transformer with Timer and Photocell Slide Sensor
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    100 Watt Dual-Tap Landscape Transformer with Timer and Photocell Slide Sensor

    WM-TR-100W-DT-TPC-SS
    $264.15
    MSRP: $293.78
    Optimize your outdoor lighting system with the WM-TR-100W-DT-TPC-SS Dual-Tap Landscape Transformer. This robust 100-watt transformer is designed to efficiently manage 12V and 15VAC landscape lighting, featuring a timer and a photocell slide sensor for...
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    $264.15
    MSRP: $293.78
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  • Best Lighting HD07VR-PH-1, Passive Infrared Sensor, 39 FT Mounting Height
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    Best Lighting HD07VR-PH-1, Passive Infrared Sensor, 39 FT Mounting Height

    BL-HD07VR-PH-1
    $25.00
    Passive infrared sensor with a maximum mounting height of 39 FT, factory settings include detection area at 100%, 5-second hold time, 0-second stand-by period, 10% stand-by dimming level, and disabled daylight threshold. Key Features and...
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    $25.00
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  • PIR Sensor, 1-Pin Audio Jack Contact, 600W, 40Ft, 120-277V, 0-10V, Bi-Level, Bluetooth App Ready PIR Sensor, 1-Pin Audio Jack Contact, 600W, 40Ft, 120-277V, 0-10V, Bi-Level, Bluetooth App Ready image 2
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    PIR Sensor, 1-Pin Audio Jack Contact, 600W, 40Ft, 120-277V, 0-10V, Bi-Level, Bluetooth App Ready

    WM-WEC-3PBT-78-AJ-WH
    $65.55
    MSRP: $72.78
    Enhance Lighting Control with the Westgate Manufacturing PIR Sensor The Westgate Manufacturing WEC-3PBT-78-AJ-WH is designed to offer unparalleled convenience and efficiency in lighting control for commercial and industrial environments. This versatile...
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    $65.55
    MSRP: $72.78
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  • Dimming Receptacle, 5-Pin Dimming Receptacle, 5-Pin
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    Dimming Receptacle, 5-Pin

    WSD-OJ-M713-B-5P
    $18.45
    MSRP: $25.00
    The OJ-M713-B-5P is a cutting-edge dimming receptacle designed for seamless integration into outdoor commercial and public lighting systems. This series is a vital component in modern lighting solutions, enabling efficient dimming capabilities and...
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    $18.45
    MSRP: $25.00
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  • Photocell, 120V-277V
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    Photocell, 120V-277V

    PI-PC
    $16.15
    This photocell is an essential component for automated lighting solutions, detecting ambient light levels to activate fixtures efficiently. Key Features and Benefits Automatically activates lighting based on ambient light detection...
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    $16.15
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  • Portor PT-UNI-SP-PR-3, Universal Short Pin PIR Motion Sensor, 12-24V DC, IP65, Outdoor, Adjustable Settings
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    Portor PT-UNI-SP-PR-3, Universal Short Pin PIR Motion Sensor, 12-24V DC, IP65, Outdoor, Adjustable Settings

    PI-PT-UNI-SP-PR-3
    $25.15
    The Portor PT-UNI-SP-PR-3 Universal Short Pin PIR Motion Sensor is designed for seamless integration into outdoor lighting fixtures, delivering advanced multi-level control based on motion detection. This sensor is a versatile addition to Portor’s...
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    $25.15
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  • Microwave Motion Sensor BRI810-B-M10, AC120-277V
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    Microwave Motion Sensor BRI810-B-M10, AC120-277V

    WSD-BRI810-B-M10
    $24.60
    MSRP: $32.00
    This Microwave Motion Sensor from WSD LED Inc., model BRI810-B-M10, is a key component for energy-efficient lighting systems, operating between AC120-277V. Its sleek black design makes it unobtrusive in any setting.Key Features and BenefitsEasy...
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    $24.60
    MSRP: $32.00
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  • Westgate Manufacturing Factory-Installed Keilton Network Sensor Option
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    Westgate Manufacturing Factory-Installed Keilton Network Sensor Option

    WM-OPT-SEN-KEILTON-LHB2
    $108.55
    The Westgate OPT-SEN-KEILTON-LHB2 is a factory-installed smart sensor option designed for select LHB2 high bay configurations. As part of Westgate’s intelligent control-ready offering, it streamlines deployment by arriving pre-integrated from the...
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    $108.55
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  • Westgate Keilton Network Sensor
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    Westgate Keilton Network Sensor

    WM-OPT-SEN-KEILTON-WMDL
    $108.55
    The Westgate OPT-SEN-KEILTON-WMDL is a Keilton network sensor designed to expand intelligent lighting control capabilities in connected commercial systems. As part of Westgate’s control accessory lineup, it helps improve energy performance and...
    Qty in Cart: 0
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    $108.55
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  • Westgate Manufacturing WG Network Sensor, Wireless Motion Daylight Sensor
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    Westgate Manufacturing WG Network Sensor, Wireless Motion Daylight Sensor

    WM-OPT-SEN-NLS-WMDL
    $94.25
    The Westgate WG Network Sensor is a control accessory designed to expand intelligent lighting functionality across compatible fixtures and systems. As part of Westgate’s networked controls offering, it helps improve energy performance and automation in...
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    $94.25
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  • Westgate Network Sensor, OPT-SEN-NLS-FDL0
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    Westgate Network Sensor, OPT-SEN-NLS-FDL0

    WM-OPT-SEN-NLS-FDL0
    $94.25
    The Westgate OPT-SEN-NLS-FDL0 is a network sensor accessory built to support smart lighting control strategies in commercial environments. As part of Westgate’s control ecosystem, it helps expand fixture intelligence and system-level responsiveness. It...
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    $94.25
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  • Westgate Manufacturing Keilton Network Sensor, FDL
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    Westgate Manufacturing Keilton Network Sensor, FDL

    WM-OPT-SEN-KEILTON-FDL
    $108.55
    The Westgate Manufacturing Keilton Network Sensor is a smart control accessory built to expand intelligent lighting functionality in connected commercial systems. As part of Westgate’s Keilton ecosystem, it helps improve energy performance and...
    Qty in Cart: 0
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    $108.55
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  • Westgate WG Network Sensor, 3MRLV, 5
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    Westgate WG Network Sensor, 3MRLV, 5

    WM-OPT-SEN-NLS-3MRLV-5
    $94.25
    The Westgate Keilton WG Network Sensor is a smart control component designed to enhance connected lighting systems in commercial environments. As part of Westgate’s networked controls lineup, it helps improve energy efficiency, automation, and lighting...
    Qty in Cart: 0
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    $94.25
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Adding your products to cart

Occupancy Sensor or Vacancy Sensor: What the Energy Code Requires

The first question on any sensor spec is not the technology, it is the code. ASHRAE 90.1 and California Title 24 both require automatic lighting shutoff in most commercial spaces, and for many room types they specifically require manual-on operation, which means a vacancy sensor rather than an auto-on occupancy sensor. Manufacturer catalogs list their own sensors by model; none of them put the code decision on the category page. Here is the short version, with the usual caveat that the authority having jurisdiction and the adopted code year control the final answer.

Space TypeCommon RequirementWhy
Private offices, small conference roomsVacancy (manual-on, auto-off)Title 24 and 90.1 favor manual-on in enclosed spaces to prevent false-on energy waste
Restrooms, storage, break roomsOccupancy (auto-on, auto-off)Full automatic operation is generally accepted where hands-free switching matters
Classrooms and training roomsVacancy or partial-onPartial-on brings up a fraction of lighting automatically, the rest by manual switch
Warehouse aislesOccupancy with partial-off dimmingCodes increasingly require lights to drop to a low level, not full off, for safety
Corridors and stairwellsOccupancy with partial-offEgress paths typically may not go fully dark while the building is occupied

PIR, Ultrasonic, or Dual Tech: Match the Sensor to the Room

Once the control strategy is set, pick the sensing technology by room geometry rather than by brand loyalty. The three families behave differently around partitions, ceiling heights, and minor motion like typing.

TechnologyHow It DetectsBest ForWatch Out For
PIR (passive infrared)Body heat moving across line of sightOpen rooms, restrooms, high ceilings with lens optionsBlind to motion behind partitions; minor motion range is shorter than major motion range
UltrasonicDoppler shift in reflected sound wavesRestroom stalls, cubicles, L-shaped roomsAirflow from HVAC diffusers can cause false-on; keep away from vents
Dual technologyPIR plus ultrasonic in one unitClassrooms, conference rooms, spaces where false triggers are costlyHigher unit cost; confirm which technology is required to hold lights on

Coverage is stated per model as major and minor motion areas. Typical wall switch occupancy sensors cover on the order of 900 square feet of major motion in an open room; ceiling mounted units extend that with 360 degree lenses and are the right call for warehouses, gyms, and open offices. Always check the minor motion figure for desk work areas, since a sensor that only sees walking motion will time out on a room full of people typing.

Wall Switch Motion Sensor Switches

The fastest retrofit in the building is replacing a standard toggle with a motion sensor light switch. Wall switch occupancy and vacancy sensors install in the existing box, need no ceiling wiring, and immediately capture savings in offices, restrooms, and conference rooms. Check three things before ordering: whether the model requires a neutral conductor, the load types it supports (LED and electronic ballast loads are the norm now), and whether you need single pole or 3-way compatible units for multi-entry rooms.

Photocells and Rebates

For exterior automation, photocell controls switch on outdoor fixtures at dusk, with shorting cap and twist-lock NEMA options for area lights; see Photocell Controls. Occupancy sensors are also a standard utility rebate measure, so keep model numbers and spec sheets from the product pages for the incentive application. Browse indoor models under Occupancy Sensors, pair them with Dimmers for partial-off strategies, or see Switches and Smart Wiring Devices to complete the controls package.

Frequently Asked Questions

An occupancy sensor turns lights on automatically when it detects a person and off after the space empties. A vacancy sensor only turns lights off automatically; a person must switch them on manually. Energy codes often prefer or require vacancy operation in enclosed spaces like private offices because auto-on wastes energy when daylight is already adequate. Many models ship configurable to either mode.

Under California Title 24 and recent ASHRAE 90.1 editions, enclosed spaces such as private offices, small conference rooms, and classrooms commonly require manual-on control, which means vacancy operation or a partial-on strategy that automatically raises only part of the lighting. Restrooms, storage rooms, and similar spaces generally may use full auto-on occupancy control. The adopted code year and local amendments control, so confirm with the AHJ.

Pick by room geometry. PIR needs line of sight, so it suits open rooms and mounts with clear views. Ultrasonic detection wraps around partitions, making it the choice for restroom stalls and cubicle areas, though HVAC airflow can trigger false-ons. Dual technology combines both and is the safest pick for classrooms and conference rooms where nuisance switching is unacceptable.

Typical wall switch sensors cover roughly 900 square feet of major motion, such as walking, in an open room, with a smaller minor motion zone for desk level movement like typing. Actual coverage depends on the lens pattern and mounting position, and partitions cut PIR coverage sharply. For open areas beyond a single sensor's pattern, step up to ceiling mounted units with 360 degree coverage.

Modern sensors are rated for LED and electronic driver loads, but check two specs. First, the minimum load: some older sensor designs need more connected wattage than a small LED circuit draws. Second, the load type rating on the datasheet should explicitly list LED at your voltage. Models requiring a neutral conductor handle low LED loads more reliably than two-wire designs that leak current through the fixture.

Yes, lighting controls are a standard prescriptive rebate measure in most utility efficiency programs, typically paid per sensor or per controlled watt. Wall switch sensors, ceiling mounted sensors, and fixture integrated sensors usually qualify when they control interior lighting. Keep the model numbers and spec sheets from the product pages; rebate applications generally ask for both, plus the controlled fixture count.

Center the sensor over the area it controls, keep it at least 6 to 8 feet from HVAC diffusers if it uses ultrasonic detection, and avoid mounting where shelving or partitions block the lens pattern. In aisles, place sensors so their major motion coverage overlaps at the ends of each run. Follow the manufacturer's coverage template for the specific lens; patterns differ meaningfully between models.