GeoMax Zoom90 Robotic Total Station

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The GeoMax Zoom90 is the ultimate one-man system with significantly increased automation performance, extended reflectorless measurement capability, unmatched Scout-Track-Aim (STReAM360) functionality combined with accXXess EDM technology, and Windows CE open connectivity. 

Thanks to its seamless sensor fusion, the Zoom90 is the ultimate solution.

Additional Resources

[GeoMax Zoom90 Datasheet]

[GeoMax Zoom90 User Manual]

GeoMax Zoom90 Robotic Total Station

Client Testimonials

"The GeoMax Zoom90 is a lot lighter, tracks & scans much easier, and the long range Bluetooth eliminated all those cords and radios that constantly stayed hung up in vines and brush, not to mention the weight reduction to the prism pole."

-J.B. Faircloth and Associates

"Life in the field has changed drastically since I bought the Zoom90. The cordless Bluetooth radio connect is nice in forest vegetation, the wires don't tangle, and the radio range holds up in forest vegetation also."

-Dan Hinson Land Surveyor, Inc.

GeoMax Zoom90 Robotic Total Station Features


Fitted as standard in the telescope, the NavLight is an efficient alignment aid, helping to speed up work while setting out. Its flashing red and yellow lights will guide you quickly and exactly to the line of sight.

EDM Technology Full Connectivity

GeoMax’s accXess EDM Technology in the Zoom90 provides leading reflectorless measurements up to 3280.84 feet (1,000 meters). The extra small laser footprint and the sophisticated signal-processing technology ensures the highest accuracy, regardless of the distance or conditions.

STReAM360: Fully Robotic

Scout: Scans the entire working area within seconds to quickly find the target.

TRack: Continuously track targets. Once the prism is locked onto, the instrument remains accurately aimed on the moving target.

AiM: Aims accurately at any prism, without needing to look through the telescope. Measurements are performed automatically with consistently high and repeatable dependability.

Fully Robotic

GeoTRAil: Supporting this new field software functionality enables the Zoom90 to catch your prism based on the GNSS position transferred from your field controller. Due to its seamless integration in various field software solutions, it is simple and easy to use.

Scout: In addition to GeoTRAil the Zoom90 incorporates the Scout technology where a vertical laser fan is emitted from the rotating instrument. As soon as reflections from a prism are received, the Zoom90 accurately aims towards this prism.

TRack: Another element of the STReAM360 is the tracking functionality; the Zoom90 is continuously tracking the target. Once locked onto, the instrument remains accurately aimed even on fast moving targets.

AiM: The Zoom90 aims accurately at any prism, without the need to look through the telescope. Highly reliable measurements are performed automatically and are consistently repeatable.

GeoMax Zoom90 Robotic Total Station Specifications

Angle Measurements

Accuracy 1" (0.3 mgon), 2" (0.6 mgon), 5" (1.5 mgon)
Display resolution  0.1" (0.1 mgon)
Method Absolute, continuous, diametrical
Compensation Quadruple axis


Magnification 30x

Distance Measurements - Prism


Standard mode: 3500 m/1 mm + 1.5 ppm/typ. 0.8 sec*

Long mode: >10,000 m / 5 mm+2 ppm / typ. 2.5 sec

Distance Measurements - Reflectorless


accXess5 / accXess10

500 m / 1000 m


2 mm + 2 ppm**


Typ. 3 sec

Precise Capture

8x20 mm at 50 m


Technology Hybrid Drives
GeoTRAil - GNSS based prism search
Speed 100 g/sec
Scout - Opto-electronic prism search
Range 300 m at round prism
TRack - Automatic prism logging
Range 800 m at round prism
Max speed 90 km/h at 100m
AiM - Automatic prism fine aiming
Range 1,000 m at round prism
Hz/V accuracy 1"
Technique Image processing

NavLight - Alignment Aid

Range 5 m to 150 m
Accuracy 5 cm at 100 m


Keyboard Full alphanumeric; 35 keys; illuminated (2nd optional)
Display Full VGA 640 x 480 color and touch with LED backlight
Data recording 1 GB internal memory;removable SD card and USB stick
Ports Serial; USB; internal Bluetooth; long-range Bluetooth handle and external power
Operating system Microsoft Windows CE 6.0

Physical Specifications

Weight 5.0 - 5.3 kg (w/o battery and tribrach)
Operating- / storage temperature -20°C to 50°C / -40°C to 70°C
Protection class IP55 dust and waterproof rating
Humidity 95%, non-condensing

Power Supply

Internal battery Removable Li-Ion 4.4 Ah / 7.4 V
Operating time 7-10 h***


Type Laser point, adjustable brightness
Accuracy 1.5 mm at 1.5 m instrument height

* Fast mode;
** > 500 m: 4 mm + 2 ppm;
*** Single measurement every 30 second at 25° C. Battery time may be shorter depending on conditions.

GeoMax Positioning

GeoMax's portfolio of innovative solutions, products and equipment is known for being robust, easy-to-use and value-priced. Through the global and industry strength of GeoMax's parent company, Hexagon, the business has access to state-of-the-art development and production facilities in Europe, North America and Asia. Removing the frills enables GeoMax to deliver products that "work when you do" - independent of weather, location and task.

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