Measurement done right

A versatile and precise survey tool

Product Info

Advanced design for faster workflows

The GM-50 Series is the perfect entry-level site layout and survey tool, offering reliability and flexibility without sacrificing functionality.

The sleek design is built tough with a waterproof and dustproof IP66 rating, integrated Bluetooth® capability and an internal antenna, enabling you to deliver measurements to your data controller wirelessly, streamlining your equipment weight and workflow.

The GM-50 is also armed with a top-line EDM, generous internal memory storage and TopBasic on-boarding software with everything you need to get the job done out in the field.

  • Integrated construction and survey application software
  • Fast, accurate and powerful EDM
  • Reflectorless up to 500 m
  • Prism range up to 4,000 m
  • Advanced angle accuracy (2" or 5")


Compare to Similar Products:

GM-50 Specifications

Up to 32 GB
50,000 points
Distance Measurement
Up to 500 m
Prism EDM Range
Up to 4,000 m
Measuring Time
0.9 s (Initial 1.7 s)
0.7 s (Initial 1.4 s)
0.4 s (Initial 1.4 s)
Power and Electrical
Up to 14 hours in Eco mode.
Prism EDM Accuracy
Prism Accuracy:
1.5 mm + 2 ppm
Non-Prism Accuracy:
2.0 mm + 2 ppm
(0.2 - 200 m)

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