5\\" Precision Topcon GM105 GPS Survey Robot Kit Rtk Total Station

PRODUCT DESCRIPTIONTopcon performs tough environmental tests to ensure long-term operation even under rough site environment. GM series total stations are throughly inspected with dust-proof and water proof tst chambers. In addition, various tests against vibration, drop, temperature, and humidity were successfully passed to ach

Featured Products

Topcon performs tough environmental tests to ensure long-term operation even under rough site environment. GM series total stations are throughly inspected with dust-proof and water proof tst chambers. In addition, various tests against vibration, drop, temperature, and humidity were successfully passed to achieve the best environmental spec. Also, the measuring distance accuracy test on base line and the insturment leveling and angle accuracy test and adjustment by collimator system ensure your satisfaction on the GM series product quality.


*Newly Designed High-End Class EDM 

Especially effective in surveying control points that require high-accuracy, and in cross sectional surveying in large areas with reflectorless measurement mode.

*Reliable Large Volume Memory

Internal memory has 50000 points to record . USB memory can be used up 32GB.

*Strong Environmental SPEC

The IP66 rating ensures durability for most any rough job site temperatures and conditions

*Long-life Battery 

On battery (BDC70) lasts up to 28 hours, or about four days of normal operation time.

*Bright Illumination Key for Nighttime Work

Key buttons are illuminated to minimze mistakes.  



Laser outputReflectorless mode: class 3R/Prism /sheet mode: class 1
Measuring Range800m (under average conditions)
Reflectorless0.3 to 800m (2620ft)/ under good conditions: 1000m (3280ft)
Reflective sheet

RS90N-K:1.3 to 500m (4.3 to 1640ft)

RS50N-K:1.3 to 300m (4.3 to 980ft)

RS10N-K:1.3 to 100m (4.3 to 320ft)

Mini Prism

1.3 to 500m (4.3 to 1640ft)

One Prism1.3 to 5000m (4.3 to 16400ft)/ under good conditions: 6000m (19680ft)
Minimum Display

Fine/Rapid: 0.0001m/0.001ft/1/16in, 0.001m(0.005ft/1/8in) (selectable)

Tracking/Road: 0.001m/0.005ft/1/8in. 0.01m/0.2ft/1/2in. (selectable)

Accuracy (ISO 17123-4:2001)
Reflectorless(2+2ppm ×D) mm
Reflective sheet(2+2ppm ×D) mm
AP/CP Prism(1.5+2ppm ×D) 1.5mm
Measuring TimeFine: 0.9s(initial 1.5s), Rapid: 0.6s, Tracking: 0.4s (initial 1.3s)
Display Resolution0.5"/1"1"/5" 
Accuracy (ISO 17123-4:2001)1"2"3"5"
Dual-axis compensatorDual-axis liquid tilt sensor, working range: ±6' (±111mgon)
Collimation compensationOn/off (selectable)
Magnification/Resolving power30×/2.5"
Length171mm (6.7in)
Objective aperture45mm (1.8in)(48mm (1.9in) for EDM)
Field of View1°30'(26m/1000m)
Minimum Focus1.3m (4.3ft)
Reticle Illumination5 brightness level
Operating SystemLINUX
Control panel locationOn both faces(Second display is optional)

Graphic LCD, 192×80 dots, Backlight, contrast adjustment/

Alphanumeric keyboard/28 keys with backlight 

Trigger key

Yes (right side)

Data storage
Internal MemoryApprox. 50000 points
Plug-in memorey deviceUSB flash memory (max. 32GB)
Interface Serial RS-232c, USB2.0 (Type A, for USB flash memory)
Bluetooth Modem (option)Bluetooth class 1.5, operating range: up to 10m (33ft)
Laser-pointerCoaxial red laser using EDM beam
Guide Light Green LED (524nm) and RED LED (626nm), operating range:1.3 to 150m (4.3 to 490ft)
Graphic 6'(inner circle)
Circular Level10'/2mm
OpticalMagnification: 3x, Minimum focus: 0.5m(19.7in) from tribrach bottom
LaserRed laser diode (635 nm±10nm), beam accuracy: ≤1.0mm at 1.3m, class 2 laser product
Dust and waterproof protectionIP66 (IEC60529:2001)
Operating temperature-20ºC~+60ºC (-4~+1400F)
Size with handle


Instrument Height192.5mm from tribrach mounting surface
Weight with battery &TribrachApprox, 5.3kg
Power Supply
BatteryLi-ion rechargeable battery BDC70
Operating timeBDC70: Approx. 28hours
Application Program 
On boardREM Measurement, 3D coordinate measurement, Resection, Stake out, Topography observation, Offset measurement, Missing Line Measurement, Intersection, Surface Area Calculation, Route surveying, Point to line





Shanghai Hexin Survey Instrument Co., LTD has 8 years' experience in geodetic surveying and cadastration surveying, we are a professional and leading enterprise in the surveying industry in MainlandChina. We specialize in the R&D and manufacturing and sales of all kinds of surveying products, including total station, electronic theodolite, electronic distance meter, automatic level, laser level, reflector prism, surveying  accessory, GPS receiver, mapping software, etc.The marketing model advocated by us is not a simple sense of "selling products", instead, pre-sales service, services  during operation and after-sales service are integrated in entire operating activities. It makes the customers feel that they purchased not only a commodity, but also a professional service.We welcome new and old customers from all walks of life to contact us for future business relationships and achieving mutual success!



Q:How to turn off voice broadcast of receiver?
A: a. Enter the WEBUI, find the voice switch in the settings page and turn it off.

b. Controller Software→Device→Device Setting, turn off the "enable voice", and click"ok"

Q: Can the base station and rover station be interchangeable?
A: The difference between the rover station and the base station is that the accessories are different, the function and hardware configuration are the same.You can use the controller to choose the working mode of the device and set it as the base station or rover station.

Q: What is CORS?
A: CORS is called a continuous operating reference station system. It can be understood as a bas e station that is erected at a fixed known point and works continuously for 24 hours and sends its own data to a specific 
serverthrough the network. The use of CORS operation eliminates the need for a base station, and CORS is equivalent to a base station in a normal network operation.



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