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Data Loggers

HOBO UX90 Light On/Off Logger - UX90-002M

Extended Memory

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IMPORTANT: This HOBO data logger requires HOBOware software and a communications device. See compatible items below.

The HOBO Light On/Off data logger monitors indoor light changes with an internal sensor and records light on and off conditions, making it ideal for building energy audits and light usage analysis. The HOBO UX90-002 LightOn/Off Data Logger is available in a standard 128 KB memory model (UX90-002) capable of 84,650 measurements and an expanded 512KB memory version (UX90-002M) capable of over 346,795 measurements.

  • Auto-calibration of ON and OFF thresholds ensures reliable readings

  • User adjustable sensitivity control for low/high light level conditions

  • 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

The UX90-002M Data Logger is for use in Indoor environments

The UX90-002M Data Logger supports the following measurements:

Light On/Off

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