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Automatic Lighting Type
Photocell Sensors
Sensor Type
Motion / Photocell Sensors
Motion / PIR / Occupancy
Photocell Sensor
Infrared (IR)
Ceiling Mounted
Energy Efficient
LED Feedback
# of Buttons
1 Button
Ivory Finish
Maximum Incandescent Load
800 Watts.
Maximum Power Handling
800 Watts
Occupancy Sensor Technology
PIR Sensor
110V AC
120V AC
24V DC
277V AC
Ease of Installation
Intermediate (Installs < 60 minutes)
Hubbell Bryant
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Wall Switch Occupancy Sensor with Adaptive Technology
Hubbell Bryant MSD1000I1 Ultrasonic and PIR Occupancy Sensor Wall Switch
Hubbell Bryant MSD1000I1 Ultrasonic and PIR Occupancy Sensor Wall Switch
Hubbell Bryant MSD1000I1 Ultrasonic and PIR Occupancy Sensor Wall Switch 1-Circuit 1 Button, Ivory
Item# 36850IV
Price: Normally $207.00 
Hot Deal $82.95
Free shipping on orders over $175 - See Details


  • 1,000 square foot coverage with photocell
  • Single circuit - 1 button for manual/auto control
  • Adaptive technology - Install and forget operation
  • All digital sensing technology
  • Dual (Ultrasonic and Passive Infrared) sensing technology

Essential Info

The Hubbell Bryant MSD1000I1 Wall Switch Occupancy Sensor combines the excellent minor motion detection of ultrasonic with the outstanding passive infrared (PIR) long-range major motion detection. It also includes Bryant’s Adaptive Technology which allows you to install and forget, saving time and money from not having to do constant adjustments. This technology also helps eliminate false-offs and disturbances.

Dual technology occupancy sensors combine both passive infrared (PIR) and ultrasonic (US) technologies for maximum reliability. Because Ultrasonic and PIR need to both detect occupancy to turn lighting on, dual technology sensors minimize the risk of lights coming on when the space is unoccupied-false triggering. Continued detection by only one technology then keeps lighting on as necessary. Dual technology sensors offer the best performance for most applications.

  • Adaptive technology - "Install and forget" operation
  • All digital sensing technology
  • Dual 120/277V AC operation. No neutral required
  • Auto or manual "On" operating modes
  • No minimum load requirements
  • Hard lens (dual technology, passive infrared)
  • Zero arc point switching
  • Built in photocell with manual super saver mode for daylight harvesting
  • Bi-level switching or dual load control (MSD, MSP, MSU1000x2, 2N series)
  • Nylon wallplate included

    The Bryant MSD1000I1 Ultrasonic and PIR Occupancy Sensor Ivory Wall Switch 1-Circuit 1 Button is also available in White, sold separately.

  • What's Included

  • 1x - MSD1000I1 Wall Switch Occupancy Sensor, Ivory
  • 1x - Nylon Wallplate
  • 1x - Installation instructions

  • More Info

    Adaptive Technology
    Adaptive Technology is a BRYANT exclusive and delivers benefits to both building owners and occupants. The building owner achieves reduced energy costs, fewer adjustments and less maintenance, and the building occupant experiences fewer false-offs and disturbances. Adaptive technology occupancy sensors use microprocessors that make all the decisions for setting adjustments. Internal software constantly monitors the controlled area and automatically adjusts the sensitivity and timer based on environmental history. Instead of manually adjusting the sensor for seasonal changes, modified airflow, furniture layout or occupancy pattern changes, the sensor automatically adjusts itself. These automatic adjustments eliminate the need for multiple manual adjustments by maintenance personnel or outside contractors. BRYANT offers adaptive technology throughout its product offering - wall switches, ceiling and wall mount sensors in conjunction with dual technology, ultrasonic and passive infrared products.


    ManufacturerHubbell Bryant
    Manufacturer Product NoMSD1000I1
    UPC 781786102095
    Coverage Area1,000 Square Feet
    CircuitsSingle Circuit
    ControlsManual or Auto
    Power RequirementsDual 120/277V AC
    Lighting Control800W Incandescent
    1000W Fluorescent at 120V AC
    1800W Fluorescent at 277V AC
    Operational Frequency 50/60 Hz
    Manufacturer WarrantyFive Years Limited
    Certifications cULus, CEC Title 24 Certified

    Important notes:
    Defective exchanges for identical item within 30 days of purchase. After 30 days, please contact the manufacturer.
    Manufacturer contact information: Hubbell Bryant, Tel: (800) 323-2792 Ext


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