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Occupancy & Light Data Logger (Expanded Memory)


The HOBO Occupancy & Light data logger monitors room occupancy and indoor light changes to identify occupancy patterns and determine energy usage and potential savings. The HOBO UX90-006 Room Occupanc..

  • Brands ONSET
  • Product Code: UX90-006M
  • Availability: 7-10 Days

Tags: occupancy, light, data, logger, ux90-006m, expanded, memory, hoboware, usb

Occupancy and Light Data Logger with Expanded Memory

The HOBO Occupancy & Light data logger monitors room occupancy and indoor light changes to identify occupancy patterns and determine energy usage and potential savings. The HOBO UX90-006 Room Occupancy/Light Data Logger is available in a standard 128 KB memory model (UX90-006) capable of 84,650 measurements and an expanded 512KB memory version (UX90-006M) capable of over 346,795 measurements.


Highlighted Features


  • Measures room occupancy up to 12 meters away
  • Auto-calibration of ON and OFF thresholds ensures reliable readings
  • The LCD screen displays signal strength, enabling proper logger placement
  • Highly recommended light pipe accessory eliminates effects of ambient light to ensure the most accurate readings
  • Compatible with HOBOware and HOBOware Pro software for logger setup, graphing and analysis



In what environment does this data logger operate?

This data logger operates in an indoor environment.

What measurements does this data logger support?

The UX90-006M data logger supports the following measurements: Light On/Off and Occupancy

For more information visit Onset


  • HOBO UX90-006M Occupancy/Light Data Logger
  • Command™ strip
  • Double-sided tape
  • Hook & loop strap


The following are associated resources for this product. In general users of this product can gain insight into its possible use by utilizing the resources below.


White Papers

On-Demand Webinars

How-To Videos

Informational Pages

Application Stories

Tech Notes

Self-Guided Training

Choosing an Occupancy and Light On/Off Data Logger – 5 Important Considerations Tips, Tricks, Methods for Industrial Data Logging Combining Plug Load and Occupancy Data in HOBOware Pro Tips on Buying a Data Logger Data Loggers Investigate Energy Waste in Indiana School District Data Assistant Videos on YouTube Working with UX90 Time-of-Use Loggers
  Data Logger Basics HOBOware Menus Explained Part 1 What is a Data Logger? Energy Performance Monitoring - Roundtable Discussion The data logger is shutting off prematurely  
  HOBO UX90 Time-of-Use Data Loggers HOBOware Menus Explained Part 2   Industry Viewpoint: Energy Assessments Using Data Loggers Data loss and recovery  
  Tips for Selecting and Deploying Data Loggers for Building Performance Monitoring How to add graph labels in HOBOware Pro   Monitoring Building Efficiency with Data Loggers: a Conversation with Darren Goody Drying a wet circuit board  
    How to analyze data from the HOBO UX90-005 and 006 data loggers   Occupancy Loggers Drive Cost-Saving Decisions in Historic San Francisco Building Event data logging vs State data logging  
    How to Analyze HOBO UX90-005 & UX90-006 Light/Occupancy Data   Turning Buildings Green with Data Loggers: a Conversation with Alexander E. Othmer How do I delete, erase, or clear data from my data logger's memory?  
    How to automatically launch multiple HOBO USB data loggers     Logger power failure and data loss  
    How to automatically readout and save data from a HOBO USB data logger     Logging Duration in the Launch Screen- What Does That Mean?  
    How to configure the HOBO UX90-005 and 006 data loggers         Sample Data - HOBO UX90-005 & -006 Light On/Off & Occupancy - Light Sensor Internal Calibration Event  


Light Sensor
Light Threshold > 65 lux
Light Type LED, CFL, fluorescent, HID, incandescent, natural
Download Type USB 2.0 interface
LCD LCD is visible from: 0° to 50°C (32° to 122°F); the LCD may react slowly or go blank in temperatures outside this range
Logger Battery Life 1 year typical use
Logger Environmental Rating IP50
Logger Operating Range Logging: -20° to 70°C (-4° to 158°F); 0 to 95% RH (non-condensing) Launch/readout: 0° to 50°C (32° to 122°F) per USB specification
Logger Size 3.66 x 8.48 x 2.87 cm (1.44 x 3.34 x 1.13 in.)
Logger Time Accuracy ±1 minute per month at 25°C (77°F)
Memory Modes 128 KB (84,650 measurements, maximum)
Occupancy Sensor
Detection Performance 102° (±51°) Horizontal; 92° (±46°) Vertical
Detection Range maximum 12 m (39.4 ft
Detection Zones 92