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Sensors

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  • Motion Sensor Option, 480V for ULHB
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    Motion Sensor Option, 480V for ULHB

    WM-OPT-SEN-ULHB-480V
    $177.55
    Enhance Your Lighting with the Motion Sensor Option for ULHB Series Upgrade your high bay lighting with the Motion Sensor Option for ULHB series, designed for seamless integration with your existing lighting system. This innovative sensor provides...
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    $177.55
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  • Programmable Microwave Bi-Level Sensor
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    Programmable Microwave Bi-Level Sensor

    WM-OPT-SEN-2MDR-36
    $57.00
    Programmable Microwave Bi-Level Sensor for Energy Efficiency This innovative programmable microwave bi-level sensor, SKU: WM-OPT-SEN-2MDR-36, is crafted to deliver optimal energy efficiency and adaptable lighting control. Its compact design coupled...
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    $57.00
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  • Factory Installed Options, Photocell Twist Lock for OPT-LF3-PCK
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    Factory Installed Options, Photocell Twist Lock for OPT-LF3-PCK

    WM-OPT-LF3-PCK
    $82.70
    Westgate Manufacturing OPT-LF3-PCK Factory Installed Photocell Twist Lock Option The Westgate Manufacturing OPT-LF3-PCK is a premium factory-installed photocell twist lock option tailored to elevate the efficiency and functionality of compatible...
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    $82.70
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  • Ultrasonic Bi-level Dimming Sensor
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    Ultrasonic Bi-level Dimming Sensor

    WM-OPT-SEN-FM
    $62.85
    Enhance Lighting Efficiency with the Ultrasonic Bi-level Dimming Sensor The Ultrasonic Bi-level Dimming Sensor is an advanced, factory-installed option engineered to optimize energy usage and lighting control across diverse settings. Utilizing...
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    $62.85
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  • LDS Series Motion Sensor, Factory Installed Options
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    LDS Series Motion Sensor, Factory Installed Options

    WM-OPT-SEN-LDS-BR
    $57.00
    Enhance Your Lighting Efficiency with the Factory Installed Motion Sensor for LDS Series The factory-installed motion sensor for the LDS Series revolutionizes your lighting system by incorporating advanced occupancy-based control. This innovative...
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    $57.00
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  • OPT-SEN-LF3 Programmable Bi-level Microwave Sensor
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    OPT-SEN-LF3 Programmable Bi-level Microwave Sensor

    WM-OPT-SEN-LF3
    $71.30
    Programmable Bi-Level Microwave Sensor Enhance your lighting efficiency with our Programmable Bi-Level Microwave Sensor, the perfect solution for factory-installed lighting in various settings. This state-of-the-art sensor offers unmatched versatility...
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    $71.30
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  • Motion Sensor for LDS Series, Gray
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    Motion Sensor for LDS Series, Gray

    WM-OPT-SEN-LDS-GY
    $57.00
    Enhance Your Lighting System with the Motion Sensor for LDS Series in Gray The Motion Sensor for LDS Series in Gray is an advanced solution designed to elevate the security and efficiency of your lighting systems. Ideal for commercial and industrial...
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    $57.00
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  • OPT-SEN-LF3-YK Programmable Bi-level Microwave Sensor
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    OPT-SEN-LF3-YK Programmable Bi-level Microwave Sensor

    WM-OPT-SEN-LF3-YK
    $71.30
    Advanced Programmable Bi-level Microwave Sensor The Programmable Bi-level Microwave Sensor with factory-installed options revolutionizes motion detection and energy-saving capabilities, making it an essential addition to your lighting control setup...
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    $71.30
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  • OPT-SEN-3MR-4 Programmable Microwave Bi-Level Sensor, Factory Installed Options
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    OPT-SEN-3MR-4 Programmable Microwave Bi-Level Sensor, Factory Installed Options

    WM-OPT-SEN-3MR-4
    $65.55
    Programmable Microwave Bi-Level Sensor Enhance your lighting control system with the Programmable Microwave Bi-Level Sensor, designed for optimal energy savings and security. This sensor offers customizable lighting adjustments based on occupancy and...
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    $65.55
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  • Factory Installed Options, Twist-Lock Programmable Microwave Bi-Level Sensor
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    Factory Installed Options, Twist-Lock Programmable Microwave Bi-Level Sensor

    WM-OPT-SEN-3MR-72-TLB-BK
    $94.15
    Twist-Lock Programmable Microwave Bi-Level Sensor Enhance your lighting control with our Twist-Lock Programmable Microwave Bi-Level Sensor, specially designed to provide customizable lighting solutions. Ideal for applications requiring significant...
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    $94.15
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  • OPT-SEN-2USRC, Factory Installed Options, Optional Remote Control
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    OPT-SEN-2USRC, Factory Installed Options, Optional Remote Control

    WM-OPT-SEN-2USRC
    $42.70
    Factory Installed Options with Optional Remote Control Experience unparalleled convenience with our factory installed options, tailored to meet the demands of various applications. The optional remote control feature ensures effortless operation,...
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    $42.70
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  • OPT-SEN-3MBT, Smart BT Programmable Microwave Sensor
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    OPT-SEN-3MBT, Smart BT Programmable Microwave Sensor

    WM-OPT-SEN-3MBT
    $141.45
    OPT-SEN-3MBT Smart BT Programmable Microwave Sensor The OPT-SEN-3MBT is a cutting-edge Smart BT Programmable Microwave Sensor designed for seamless integration and precision control in a variety of lighting systems. This sensor, part of Westgate...
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    $141.45
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  • OPT-SEN-3MR-3-WH, Factory Installed Options, Programmable Microwave Bi-Level Sensor
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    OPT-SEN-3MR-3-WH, Factory Installed Options, Programmable Microwave Bi-Level Sensor

    WM-OPT-SEN-3MR-3-WH
    $142.70
    High-Performance Programmable Microwave Bi-level Sensor The OPT-SEN-3MR-3-WH from Westgate Manufacturing is a top-tier programmable microwave bi-level sensor engineered to optimize lighting control and boost energy efficiency across various...
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    $142.70
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  • Programmable Microwave Bi-Level Sensor, Adjustable Delay Time, Daylight Threshold
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    Programmable Microwave Bi-Level Sensor, Adjustable Delay Time, Daylight Threshold

    WM-OPT-3PDR-52
    $142.70
    Programmable Microwave Bi-Level Sensor Enhance your lighting control with our advanced Programmable Microwave Bi-Level Sensor. Designed with precision and efficiency in mind, this sensor is perfect for optimizing energy use and ensuring accurate...
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    $142.70
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  • Outdoor Photocell Button, 120-277V, Twist Lock
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    Outdoor Photocell Button, 120-277V, Twist Lock

    WM-OPT-LW360-PC-B
    $92.70
    Efficient Outdoor Lighting Control with the WM-OPT-LW360-PC-B Photocell Button Enhance your outdoor lighting system with our WM-OPT-LW360-PC-B Photocell Button, designed to provide energy-efficient lighting control. This outdoor photocell features a...
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    $92.70
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  • Programmable Microwave Bi-Level Sensor, Factory Installed
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    Programmable Microwave Bi-Level Sensor, Factory Installed

    WM-OPT-SEN-2MD-35
    $57.00
    Programmable Microwave Bi-Level Sensor: OPT-SEN-2MD-35 The Programmable Microwave Bi-Level Sensor, model OPT-SEN-2MD-35, delivers unmatched versatility and advanced technology for superior performance across diverse environments. Whether for energy...
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    $57.00
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  • Triac Bi-Level Microwave Sensor, 120V, Clear
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    Triac Bi-Level Microwave Sensor, 120V, Clear

    WM-WEC-2MD-TRIAC
    $37.00
    MSRP: $41.78
    Compact Triac Bi-Level Microwave Sensor - Advanced Lighting Control Experience superior lighting control with our Compact Triac Bi-Level Microwave Sensor. Designed for 120V systems, this sensor provides adjustable settings that ensure optimal...
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    $37.00
    MSRP: $41.78
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  • PIR Sensor, 1-Pin Audio Jack Contact 600W 40Ft, 120-277V, 0-10V Bi-Level & RC (Optional RC WEC-3RC)
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    PIR Sensor, 1-Pin Audio Jack Contact 600W 40Ft, 120-277V, 0-10V Bi-Level & RC (Optional RC WEC-3RC)

    WM-WEC-2PR-28-AJ-WH
    $22.74
    MSRP: $25.78
    Advanced PIR Sensor with 1-Pin Audio Jack Contact Upgrade your lighting control systems with our high-performance PIR Sensor that includes a 1-pin audio jack contact. Designed to support up to 600W, this sensor can detect motion up to 40 feet, making...
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    $22.74
    MSRP: $25.78
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  • Westgate Linear Strip Light, Microwave Sensor, 37W
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    Westgate Linear Strip Light, Microwave Sensor, 37W

    WM-WEC-2MDR-37
    $24.15
    MSRP: $26.78
    37W Linear Strip Light with Microwave Sensor Discover the ultimate in versatile lighting with our 37W linear strip light, featuring an integrated microwave sensor, selectable color temperature, and adjustable lumen outputs. Whether you need efficient...
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    $24.15
    MSRP: $26.78
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  • Ultra-Violet Photocell, 120-277V, 1/2in NPT Size
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    Ultra-Violet Photocell, 120-277V, 1/2in NPT Size

    WM-WEC-3MPCN
    $12.70
    MSRP: $14.13
    Ultra-Violet Photocell for Superior Lighting Control The Compact Ultra-Violet Photocell with 120-277V compatibility and 1/2in NPT size is your go-to choice for various lighting control applications. Its compact and durable design ensures an easy and...
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    $12.70
    MSRP: $14.13
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Lighting sensors reduce energy consumption and operating costs by ensuring lights run only when and where they are needed. Occupancy sensors detect motion or body heat to switch lights on automatically when a space is occupied and off after a set delay once the area clears. Photocell controls respond to ambient light levels, activating outdoor lighting at dusk and switching it off at dawn. Used together, these technologies form the foundation of an automated, energy-efficient lighting control system.

RelightDepot carries a broad selection of occupancy sensors and photocell controls for commercial, industrial, and outdoor applications. Wall-switch occupancy sensors replace standard switches and require no additional wiring, making them easy retrofits for offices, restrooms, and conference rooms. Ceiling-mounted sensors cover larger open areas such as warehouses, gymnasiums, and parking garages. Outdoor photocell controls are available in shorting cap, locking twist-lock, and adjustable sensitivity configurations for streetlight and area light automation.

Browse our dedicated subcategories for targeted selection. See occupancy sensors for indoor motion-based control or photocell controls for outdoor daylight-responsive switching. Pair sensors with dimmers for enhanced dimming control, or browse our full switches selection for manual control alternatives.