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Occupancy Sensors

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  • Internal Microwave Bi-Level, Occupancy Sensor, Daylight Sensor
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    Internal Microwave Bi-Level, Occupancy Sensor, Daylight Sensor

    WM-OPT-SEN-LDS
    $102.15
    The OPT-SEN-LDS is an internal microwave bi-level sensor designed to provide energy-efficient lighting control by detecting motion and adjusting light output accordingly. It offers a discreet, built-in solution for modern lighting systems. ...
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    $102.15
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  • Programmable Microwave Bi-Level Sensor, 3-Wire, Low Voltage
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    Programmable Microwave Bi-Level Sensor, 3-Wire, Low Voltage

    WM-OPT-SEN-3MRLV-6
    $95.55
    Programmable Microwave Bi-Level Sensor Our Programmable Microwave Bi-Level Sensor with a 3-wire configuration and low voltage operation is designed to provide superior energy-saving solutions and efficient lighting control. Perfect for commercial and...
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    $95.55
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  • Programmable Microwave Bi-Level, 120-277V, 0-10V Dimming, Adjustable Time Delay
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    Programmable Microwave Bi-Level, 120-277V, 0-10V Dimming, Adjustable Time Delay

    WM-OPT-SEN-LLHB-OC1
    $75.55
    Programmable Microwave Bi-Level Sensor: Advanced Lighting Control The Programmable Microwave Bi-Level Sensor (SKU: WM-OPT-SEN-LLHB-OC1) offers cutting-edge lighting control for 120-277V systems, ensuring maximum energy efficiency and superior...
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    $75.55
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  • Programmable Microwave Bi-Level Sensor, 2” & 3”
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    Programmable Microwave Bi-Level Sensor, 2” & 3”

    WM-OPT-SEN-LMW
    $118.45
    Advanced Programmable Microwave Bi-Level Sensor for 2” & 3” Fixtures Enhance your lighting solutions with the Programmable Microwave Bi-Level Sensor, engineered for seamless integration with 2” & 3” fixtures. This sophisticated sensor offers...
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    $118.45
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  • OPT Series, Occupancy Sensor, Low-Profile, Dual Relay, 33ft Range
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    OPT Series, Occupancy Sensor, Low-Profile, Dual Relay, 33ft Range

    WM-OPT-SEN-LSS-2MDR-33
    $79.85
    OPT Series Occupancy Sensor The OPT Series Occupancy Sensor by Westgate Manufacturing is engineered to significantly enhance energy efficiency and deliver reliable performance in various environments. This sensor boasts a dual relay system, a...
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    $79.85
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  • Programmable Microwave Bi-Level
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    Programmable Microwave Bi-Level

    WM-OPT-SEN-SCX-3MRLV-5
    $199.85
    Enhance Energy Efficiency with the Programmable Microwave Bi-Level Sensor The Programmable Microwave Bi-Level sensor is a cutting-edge motion sensor meticulously crafted to optimize energy efficiency in a variety of settings. This advanced sensor is...
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    $199.85
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  • Programmable Microwave Bi-Level Sensor, Low Voltage, 360-Degree Coverage, 3 Mounting Heights
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    Programmable Microwave Bi-Level Sensor, Low Voltage, 360-Degree Coverage, 3 Mounting Heights

    WM-OPT-SEN-LW360-3MRLV-5
    $195.55
    Programmable Microwave Bi-Level Sensor – Advanced Motion Detection Experience unparalleled motion detection with the Programmable Microwave Bi-Level Sensor from Westgate Manufacturing. Engineered with 360-degree coverage, this sensor is perfect for...
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    $195.55
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  • Programmable Microwave Bi-Level Motion Sensor, SCX4 Series
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    Programmable Microwave Bi-Level Motion Sensor, SCX4 Series

    WM-OPT-SEN-SCX4
    $191.30
    Programmable Microwave Bi-Level Motion Sensor for SCX4 Series The Programmable Microwave Bi-Level Motion Sensor for SCX4 Series is a state-of-the-art solution designed to enhance the efficiency and performance of your lighting system. Tailored for the...
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    $191.30
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  • Microware Bi-Level Motion Sensor, Universal Mount, High Bay Applications
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    Microwave Bi-Level Motion Sensor, Universal Mount, High Bay Applications

    WM-OPT-SEN-UHX
    $154.15
    Microware Bi-Level Motion Sensor: Efficiency for High Bay Applications The Microware Bi-Level Motion Sensor is an indispensable tool for enhancing energy efficiency in high bay environments. As part of the UHX Series, this sensor is designed to offer...
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    $154.15
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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
    $79.85
    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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    $79.85
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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
    $118.45
    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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    $118.45
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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
    $164.15
    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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    $164.15
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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
    $114.15
    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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    $114.15
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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
    $164.15
    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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    $164.15
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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
    $115.55
    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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    $115.55
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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
    $157.00
    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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    $157.00
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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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Occupancy sensors detect the presence of building occupants and use that signal to control lighting, HVAC, and other building systems automatically. In lighting control applications, an occupancy sensor turns lights on when a space becomes occupied and turns them off or dims them to a setpoint after a user-configured vacancy delay. This eliminates energy waste from lights left on in unoccupied spaces and is a core compliance strategy under energy codes including ASHRAE 90.1 and California Title 24.

Occupancy sensors use passive infrared (PIR), ultrasonic, or dual-technology detection. PIR sensors detect the heat signature of moving people and work best in smaller enclosed spaces with a clear line of sight. Ultrasonic sensors use high-frequency sound waves to detect motion through obstructions and around corners, making them effective in larger or irregular spaces. Dual-technology units combine both methods to reduce false-on and false-off events, which is important in high-visibility or occupied conference room applications.

Browse all sensor types in the Sensors category. For daylight harvesting and outdoor dusk-to-dawn applications, see Photocell Controls. Occupancy sensors are frequently installed alongside High Bay Lighting in warehouse and industrial applications, and many LED High Bay Fixtures include integrated sensor mounting options. Contact RelightDepot for sensor selection and compatibility support.