April 23, 2018 In Coventional Construction

Reflectorless Total Stations

  • Fast and accurate new EDM
  • Bluetooth® communications (optional)
  • Advanced angle accuracy
  • Long battery life – 14 hours
  • Rugged, waterproof design with IP66 rating
  • 500 m long-range reflectors measurement
  • 50,000 points internal memory

Topcon GM-50 Series total stations – advanced design with superior technology

       gm-50The GM-50 Series was designed from the ground up to deliver the very latest technological advantages, all in a small, sleek design – you’ll appreciate the advantages from the very first measurement.

Featuring a class leading EDM unit, the GM-50 is able to measure up to 4,000 m to standard prisms, and can measure in reflectorless mode up to  500 m at an incredible 2 mm + 2 ppm accuracy.

Measurements are captured faster than ever, and with a beam width of 13 mm (at 30 m), the bright red laser dot pinpoints features with ease.

Versatile, Economical Solution

       The GM-50 Series is smaller, lighter, with increased storage capacity. Offered at an even more cost-efficient option than previous models, it provides your customers the perfect tool for entry-level site layout and surveying.

Bluetooth® Communication

       With integrated Bluetooth® capability and internal antenna, the sleek design enables you to deliver measurements cable-free to your data controller.

Tested for toughness

      We performed the tough environmental tests to ensure long-term operation even under the rough site environments. GM Series total stations are throughly inspected with dust-proof and water-proof test chambers. In addition, the various tests against vibration, drop, temperature, and humidity were successfully passed to achieve the best environmental spec. The measuring distance accuracy test on base line and the instrument levelling and angle accuracy test and adjustment by collimator system ensure your satisfaction on GM Series product quality.

Angle Measurement
Min. Resolution/Accuracy 2”/5”
Min. Display 1”/5”(0.0002 / 0.0001 gon, 0.005 / 0.02 mil)
Dual-axis compensator Dual-axis liquid tilt sensor, working range: ± 6’
Collimation compensation On/Off (Selectable)
Distance Measurement 
Prism EDM Range 4,000 m
Prism EDM Accuracy 2 mm +2 ppm
Non-Prism Range 500 m
Non-Prism Accuracy 3 mm + 5 ppm (0.3 – 500 m)
Measuring Time Fine: 0.9 secRapid: 0.6 sec Tracking: 0.4 sec
Bluetooth Class 1.5, Operating range: up to 10m
USB flash memory (max.32 GB)
Serial RS-232C, USB 2.0 (Type A for USB flash memory)
Display Graphic LCD, 192 x 80 dots, backlight: on/off (Selectable) / Alphanumeric keyboard / 28 keys with backlight
Battery Operation Up to 14 hours
Dust/Water Rating IP66
Wireless Connection Bluetooth® Class 1
Operating Temp -20oC to 60oC

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