GM-55 Total Station in Pakistan – Topcon GM-50 Series Total Station

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 SDR basic 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")

Magnification / Resolving power : 30x / 2.5"
Objective aperture : 45mm (1.8in.) (48mm (1.9in.) for EDM)
Field of view : 1°30' (26m/1,000m)
Reticle illumination : 5 brightness levels
Minimum Display : 1”/5” (0.0002 / 0.001gon, 0.005 / 0.02mil)
Accuracy (ISO 17123-3:2001) : 5"
Dual-axis compensator / Collimation compensation : Dual-axis liquid tilt sensor, working range: ±6'
Laser output*1 : Reflectorless mode: Class 3R / Prism/sheet mode: Class 1
Measuring time* : Fine: 0.9s (initial 1.5s), Rapid: 0.6s (initial 1.3s), Tracking: 0.4s (initial 1.3s)
Operating system : Linux
Display / Keyboard : Graphic LCD, 192 x 80 dots, backlight, contrast adjustment / Alphanumeric keyboard / 28 keys with backlight
Control panel location : On single face
Laser-pointer : Coaxial red laser using EDM beam
Optical plummet : Magnification: 3x, Minimum focus: 0.3m (11.8in.) from tribrach bottom
Dust and water protection / Operating Temperature : IP66 (IEC 60529:2001) / -20 to +60ºC (-4 to +140ºF)
Size (with handle) : 183(W)x 174(D)x 348(H)mm (On single face)
Weight with battery & tribrach : Approx. 5.1kg (11.3lb)
Battery : Li-ion rechargeable battery BDC46C