Digital Underground Survey Instrument

Replacement: None. This product was retired because of supplier discontinuation. There is not a direct recommended replacement but our Magneto products allow for similar sensing. This page is maintained for historical purposes only.

The is a very powerful and versatile measurement device. The unit has 4 main modes and many other features:

  • Compass Mode: Tilt compensated digital compass rendered to the LCD
  • Survey Mode: Measure and store inclination and azimuth shots with a laser pointer
  • Pedometer: Counts steps
  • Gaussmeter: Absolute magnitude, relative magnitude, and 3 axis vector mode

    Calibration is very simple and can be done automatically. The unit has the ability to store at least 500 measurements. Measurements are accurate to the degree. The user can retrieve data and configure the module via USB.

    The device includes a battery and can be charged via USB. There is also room for a larger battery if needed.

    Best of all, this device is 100% open source. Check out Digital Survey Instruments web site.

  • AT90USB1287 processor
  • SCA3000 triple axis accelerometer with temperature sensors
  • HMC1052 and HMC1051z comprising a triple axis magnetometer
  • 132x64 graphical LCD with green and white backlight
  • Laser pointer
  • 16 button keypad
  • On/Off switch
  • Internal 250mAh battery, 10 hours of runtime
  • USB type B connector
  • Charging via USB
  • 6x3.6x1.3"


Looking for answers to technical questions?

We welcome your comments and suggestions below. However, if you are looking for solutions to technical questions please see our Technical Assistance page.

  • THOK / about 12 years ago / 1

    Best of all, this device is 100% open source. Check out Digital Survey Instruments web site.

    Website no longer exists (just a squatting page as of 2013-01-01.) Author mentioned in the user's guide appears to be living on a sailboat and staying off the internet :-)

    • bbotany / about 9 years ago * / 1

      Last wayback machine capture at 1 Sept 2010, but did not capture the tarballs,.

      On the upside, some source is still online at

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