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Extech AC/DC Magnetic Meter/Datalogger - SDL900

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Extech AC/DC Magnetic Meter/Datalogger - SDL900


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Extech AC/DC Magnetic Meter/Datalogger - SDL900

Extech AC/DC Magnetic Meter/Datalogger - SDL900



SDL900 AC/DC Magnetic Meter/Datalogger by Extech

Extech's SDL900 measures and datalogs both AC and DC Magnetic Field in Gauss and mT (milli Tesla) with a uniaxial Hall effect sensor and built-in ATC. Internal memory stores up to 99 readings, while SD memory card (included) allows continuous datalogging and readings can easily be exported to an Excel® format for further analysis.


  • Utilizes Hall effect sensor with ATC (Automatic Temperature Compensation)
  • Adjustable data sampling rate: 1 to 3600 seconds
  • Memory stores 99 readings manually
  • Datalogging feature records readings with date and time stamp on an SD card (included) in Excel® format
  • N pole/S pole indicator
  • Zero button for DC measurement
  • Data Hold and Min/Max
  • Auto power off with disable
  • Complete with uniaxial magnetic probe sensor with protective cover, SD memory card, Universal AC Adaptor with multi-plugs (US, EU, UK, AUS), 6 AA batteries, and hard carrying case


  • Electric transmission equipment
  • Power line
  • Microwave oven
  • Air conditioner
  • Refrigerator
  • Computer monitor
  • Video/audio device
  • Particle accelerators
  • MRI
  • Industrial & research labs
  • Transportation Systems
  • Elevators
  • Battery Power
  • Wind Power
Specifications Range Max Resolution Basic Accuracy
DC milli Tesla 300.00mT 0.01mT ±(5% + 10d)
3000.0mT 0.1mT ±(5% + 10d)
DC Gauss 3000.0G 0.1G ±(5% + 10d)
30,000G 1G ±(5% + 10d)
AC milli Tesla 150.00mT 0.01mT ±(5% + 20d)
1500.0mT 0.1mT ±(5% + 20d)
AC Gauss 1500.0G 0.1G ±(5% + 20d)
15,000G 1G ±(5% + 20d)
Number of Axis Uniaxial
AC Bandwidth 50Hz/60Hz
Sampling Rate 1 to 3600 seconds
Datalogging Datalog readings on SD card (included)
Dimensions/Weight 7.1x2.9x1.9" (182x73x48mm)/ 10.7oz (303g)

Datasheets & User Manuals

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