Light on/off Data Logger

Model number: U9-002

Records light on and off conditions, the light threshold is adjustable from 10 to 100 lumens/m2. HOBOware Pro or HOBOware free software is required for logger operation.


  • Monitors light on and off conditions and includes a user-adjustable sensitivity control.
  • Records up to 43,000 state changes.
  • Includes mounting kit with magnet, hook and loop tape, 3/8″ double-sided tape.
12 Items Available


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