• 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

The Extech SDL900 measures both AC and DC Magnetic Field in Gauss and mT (milli Tesla) with a uniaxial Hall effect sensor and built-in ATC (Automatic Temperature Compensation) with a meter that conveniently indicates North or South Pole on the display. The SDL900 is also a datalogger with internal memory that stores up to 99 readings, while SD memory card (included) allows continuous datalogging. Readings can then be easily exported to an Excel® format for further analysis.

The SDL900is useful in several applications: