HOBO Motor On/Off AC Field Data Logger

Part # H06-004-02
This product is discontinued.


Magnetic field intensities fall off rapidly with increasing distance from their source (motor, transformer, or even a single wire carrying a large AC current), requiring the data logger to be mounted very close to (ideally directly on) the field source, making interference from other sources less likely.

Highlighted Features

  • Time resolution: 0.5 second
  • Time accuracy: ±1 minute per week at +20°C (+68°F)
  • Programmable start time/date
  • Battery check at launch
  • Blinking LED lights show current state
  • Memory modes: stop when full, wrap-around when full
  • Full logger downloads in just 90 seconds
  • Nonvolatile EEPROM memory retains data even if battery fails
  • User-replaceable battery lasts one year
  • Mounting kit included (hook/loop, magnet, and tape)
  • Drop-proof to 5 feet
  • One-year warranty

In what environment does this data logger operate?

This data logger operates in an indoor environment.

What measurements does this data logger support?

The H06-004-02 data logger supports the following measurement: Motor On/Off

The country of origin for this product is the United States. To see the full specifications for this product, please see our product manual found under the documentation tab if available.

Minimum state duration: 0.5 seconds
Time accuracy: approx. ±1 minute per week (±100 ppm at +68°F), accuracy detail shown in Plot 
Capacity: 2,000 state changes (requires 8K of memory in HOBO Shuttle to fully offload)
Operating temperature: -4°F to +158°F (-20°C to +70°C)
Relative humidity range: 0 to 95%, non-condensing, non-fogging
Size/weight: 2.4" x 1.9" x 0.8"/approximately 1 oz.
Battery: CR-2032 (lithium); provides one year of continuous use; user-replaceable
Storage temperature: -40°F to +167°F (-40°C to +75°C)
AC magnetic-field threshold: approximately 2 Gauss at 60 Hz. Position the logger such that its green LED blinks when the motor is on.

Documentation for the H06-004-02