Motor on/off Data Logger

Model number: U9-004

Standalone data logger that records motor on and off status using the AC field generated by the motor, making it ideal for equipment monitoring. HOBOware Pro or HOBOware free software is required for logger operation.


  • Internal AC magnetic field sensor monitors motor on and off conditions.
  • Records up to 43,000 state changes.
  • Includes mounting kit with magnet, hook and loop tape, 3/8″ double-sided tape.
51 Items Available


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