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The AD-12 from GEO-Laser is an auto-leveling tribrach for total stations and laser scanners. A tribrach allows you to place a total station or laser scanner over a specific marker point with a greater level of precision. Traditionally, the equipment is then levelled by the loosening and tightening of screws. The AD-12 automates this process and ensures the optical equipment is always level, even if the tripod’s elevation changes. Using auto-leveling tribrachs ensures quick and easy installations. Optical equipment can even be installed on the back of an ATV. For permanent installations, it can reduce site visits to ensure the equipment is still level.


  • Can be used for devices weighing up to 22 lbs (10 kg)

  • Leveling range in two axes: +/- 12 gradians (gon)

  • Leveling range in one axis: +/- 18 gradians (gon)

  • Continuous automatic leveling 

  • Accuracy: 10 milligrades (mgon)

  • Power with a 12V battery or AC power

  • Weighs 13.8 lbs (6.3 kg)

  • Features dust and waterproof housing

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