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The Leica GS18 I is an accurate and easy to use GNSS RTK Rover. It utilises highly innovative Visual Positioning technology based on seamless integration of GNSS, IMU and a camera. It enables you to measure survey grade points in images on site and in the office. Create point clouds from captured data with Infinity to expand possibilities even further.

Designed to measure large amount of points efficiently. Leica GS18 I allows you to capture images and measure hundreds of points within minutes. There's no need to physically reach the point to measure it. This allows you to reduce time spent on-site and cut down re-work: once you captured the site, you can measure all details whenever you want to.

Imaging power has changed the rules of the game. By having the power to measure what you see, you can now reach places you couldn’t before without switching tools or climbing through obstacles. That gives you the flexibility in the field, frees up equipment and crews, and truly maximises productivity in your projects which results in increased profits.


Category: RTK GPS, Leica RTK GPS

Product Details


Self-learning GNSS
Leica RTKplus, SmartLink (worldwide correction service), SmartLink fill (worldwide correction service)
Adaptive on-the-fly satellite selection, Remote precise point positioning (3 cm 2D), Initial convergence to full accuracy typically 18 min, Re-convergence < 1 min, Bridging of RTK outages up to 10 min (3 cm 2D)
Leica SmartCheck
Continuous check of RTK solution
Reliability 99.99%
Signal tracking


Galileo / BeiDou

L1, L2, L2C, L5 / L1, L2, L2C, L3

E1, E5a, E5b, AltBOC, E63 / B1I, B1C, B2I, B2a, B3I

L1, L2C, L5, L62 / L5

SBAS / L-Band
Number of channels

555 (more signals, fast acquisition, high sensitivity)
Tilt compensation
Increased measurement productivity and traceability
Calibration-free, immune to magnetic disturbances

Sensor / Field of view (Hz, V) / Frame rate
Global shutter with 1.2 MP / 80°, 60° / 20 Hz
Image group capture
2 Hz capturing rate
Max. capturing time: 60 s, size of an image group appr. 50 MB
Point cloud
Leica Infinity software
Derive point cloud from an image group

Time for initialisation

Typically 4 s
Real-time kinematic (Compliant to ISO17123-8 standard)

Single baseline

Network RTK

Hz 8 mm + 1 ppm / V 15 mm + 1 ppm

Hz 8 mm + 0.5 ppm / V 15 mm + 0.5 ppm

Real-time kinematic tilt compensated
Topographic points (not for control points)
Additional Hz uncertainty max 8 mm + 0.4 mm/° tilt down to 30° tilt
Post processing

Static (phase) with long observations

Static and rapid static (phase)

Hz 3 mm + 0.1 ppm / V 3.5 mm + 0.4 ppm

Hz 3 mm + 0.5 ppm / V 5 mm + 0.5 ppm

Code differential
Hz 25 cm / V 50 cm
Image point measurement
1-click measurement in field / office
Typically 2 cm – 4 cm (2D1), within the distance of 2 m to 10 m to the object

Communication ports
Lemo / Bluetooth® / WLAN
USB and RS232 serial / Bluetooth® v2.1 + EDR, class 1.5 / 802.11 b/g for field controller communication only
Communication protocols

RTK data protocols

NMEA output

Network RTK

Leica 4G, Leica, CMR, CMR+, RTCM 2.2, 2.3., 3.0, 3.1, 3.2 MSM

NMEA 0183 v4.00 & v4.10 and Leica proprietary


Built-in LTE modem

LTE frequency bands

UMTS frequency bands

GSM frequency bands

Penta Band (20, 8, 3, 7, 1) / Penta Band (13, 17, 5, 4, 2)

Tri Band (900/1800/2100 MHz) / Tri Band (1700/1900/2100 MHz)

Dual Band (900/1800 MHz / Quad Band (850/900/1800/1900 MHz)

Built-in UHF modem
Receive & transmit UHF radio modem
403 – 473 MHz, channel spacing 12.5 kHz, 20 kHz, 25 kHz, max. 1 W output power up to 28800 bps over air

Field controller and software
Leica Captivate software
Leica CS20 LTE & BASIC field controller, Leica CS35 tablet
User interface

Buttons and LEDs

Web server

On / Off and Function button, 8 status LEDs

Full status information and configuration options

Data recording


Data type and recording rate

Removable SD card, 8 GB

Leica GNSS raw data and RINEX data at up to 20 Hz

Power management

Internal power supply

External power supply

Operation time

Exchangeable Li-Ion battery (2.8 Ah / 11.1 V)

Nominal 12 V DC, range 10.5 – 26.4 V DC

Typical operating time up to 8 h. Operating time depends on use of wireless communication devices.

Weight and dimensions
Weight | Dimensions
1.25 kg / 3.55 kg standard RTK rover setup on pole | 173 mm x 173 mm x 109 mm



Proof against water, sand and dust



Functional shock

-30 to +50°C operating with camera, -40 to +65°C operating without camera, -40 to +85°C storage

Withstands topple over from a 2 m survey pole onto hard surfaces

IP66 / IP68 (IEC60529 / MIL STD 810G CHG-1 510.6 I / MIL STD 810G CHG-1 506.6 II, MIL STD 810G CHG-1 512.6 I)

Withstands strong vibration (ISO9022-36-08 / MIL STD 810G 514.6 Cat.24)

95% (ISO9022-13-06 / ISO9022-12-04 / MIL STD 810G CHG-1 507.6 II)

40 g / 15 to 23 msec (MIL STD 810G 516.6 I)

More Information
Introducing Leica GS18 I, a versatile, survey-grade GNSS RTK rover with Visual Positioning. Designed for surveying professionals to measure points which previously could not be measured with a GNSS rover easily and accurately. Now, you can quickly capture the site in images and measure points from them, either in the field or later in the office. For GS18, I means imaging.