Part Number - UX90-006

HOBO Occupancy/Light (12m Range) Data Logger

12 Meter Sensor

$279.00 USD
Monitors room occupancy and indoor light changes to identify occupancy patterns and determine energy usage and potential savings; 12-meter range.

Important Information

Requires HOBOware software and a USB cable. (Note: A USB-A to USB-B mini cable is included w/HOBOware Pro USB Drive software purchase). See compatible items below.

Compatible with


Monitors room occupancy and indoor light changes to identify occupancy patterns and determine energy usage and potential savings.

Item number UX90-006M has been discontinued.


  • Measures room occupancy up to 12 meters away
  • Auto-calibration of ON and OFF thresholds ensures reliable readings
  • 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 and graphing & analysis


Occupancy Sensor

Detection Range
maximum 12 m
39.4 ft
Detection Performance
102° (±51°) Horizontal; 92° (±46°) Vertical (see Figure B)
Detection Zones
92 (see Figure B)

Light Sensor

Light Threshold
> 65 lux
Light Type
LED, CFL, fluorescent, HID, incandescent, natural


Memory Modes
Wrap when full or stop when full
Start Modes
Immediate, push button, date & time, or next interval
Stop Modes
When memory full, push button, or date & time
Time Accuracy
±1 minute per month at 25°C (77°F) (see Plot A)
Power Source
One 3V CR2032 lithium battery and USB cable
Battery Life
1 year typical use
UX90-006: 128 KB (84,650 measurements, maximum)
UX90-006M: 512 KB (346,795 measurements, maximum)
Download Type
USB 2.0 interface
Full Memory Download Time
10 seconds for 128 KB, 30 seconds for 512 KB
Operating Range
Occupancy Sensor Range: 20° to 60°C (-4° to 140°F); 15 to 85% RH (non-condensing)
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
3.66 x 8.48 x 2.87 cm
1.44 x 3.34 x 1.13 in.
30 g
1.06 oz
Environmental Rating
CE Compliance Mark

Compatible items

Compliance Certificates

$30.00 USD

Fiber Optic Attachment

$35.00 USD

Communication Cables

$18.00 USD


$13.00 USD

Graphing & Analysis

$75.00 USD
$99.00 USD

What's in the box

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


HOBO Occupancy/Light Data Logger (UX90-005, UX90-006x) User's Manual

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Quick Start for the HOBO® U-Series Data Logger

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