GeoMax Zenith35 Pro GNSS Receiver

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Full spectrum of satellite signals, full connectivity and the unique Tilt&Go functionality all in a compact GNSS make the GeoMax Zenith35 Pro series the GNSS that works when you do.

A corner of a building or even a gutter under a parked car? The unique Zenith35 Pro Tilt&Go functionality allows you to measure points where a plumb pole is not possible, such as house corners.

No longer worry about keeping your pole strictly plumb, just Tilt&Go! Seamlessly integrated into the field software, the Zenith35 Pro TAG offers two modes perfectly adapting to the measurement situation.

Additional Resources

[GeoMax Zenith35 Datasheet]

GeoMax Zenith35 Pro GNSS Receiver

GeoMax Zenith35 Pro GNSS Receiver Features

555 Channels

With a max number of channels, all satellite systems and frequencies are supported with NovAtel technology. Work how you want with selectable RTK modes.

Full support for BeiDou, Galileo, GLONASS and GPS.


When you do have to be sure your pole is perfectly plumb, the GeoMax Zenith35 Pro TAG alerts you when you are outside of the defined centering accuracy, documenting the quality of your measurement.

Compact for Easier Movement

With its compact size, the Zenith35 Pro is easy to take anywhere. Move to any point needed.

GeoMax Zenith35 Pro GNSS Receiver Specifications

GeoMax Zenith35 Pro Yes
GeoMax Zenith35 Pro TAG Yes Yes

Receiver Specifications

AdVance Technology High fix availability + reliability
Channels 555, multi-frequency
GPS Tracking L1, L2, L2C, L5
GLONASS Tracking L1, L2, L3*
BeiDou Tracking B1, B2, B3**
Galileo Tracking E1, E5a, E5b, AltBOC, E6**
Positioning Rate 5Hz, 20Hz (opt)

Receiver Accuracy RMS****

Static Horizontal 3 mm ± 0.5 ppm / .01 ft + 0.5 ppm (rms)
Static Vertical 5 mm ± 0.5 ppm / .016 ft + 0.5 ppm (rms)
Kinematic Horizontal 8 mm ± 1 ppm / .026 ft + 1 ppm (rms)
Kinematic Vertical 15 mm ± 1 ppm / .049 ft + 1 ppm (rms)
Static Long Horizontal 3 mm + 0.1 ppm / .01 ft + 0.1 ppm (rms)
Static Long Vertical 3.5 mm + 0.4 ppm / .011 ft + 0.4 ppm (rms)


Keyboard On/off and function key
LED status indicators Position, battery, Bluetooth, Wi-Fi, RTK receive, RTK transmit, data storage
LED mode indicators Rover, base, static
Data recording Dual; microSD card and 8GB internal memory
GSM/TCP/IP Removable SIM card

Quality Mode

RTK modes Selectable; ExtraSafe, Standard
Tilt&Go modes Selectable; Single/Dual


GSM/GPRS module

Quad-Band GSM & Penta-Band

UMTS 800 / 850 / 900 / 1900 / 2100 MHz

UHF radio module 500mW, 1000mW transceiver, 403 – 473 MHz
Bluetooth Device class II
TNC connector UHF antenna, UMTS/GSM antenna
Communication port USB, serial & power

Physical Specifications

Dimensions Height 5 1/8in, ø 6 5/16in
Weight 2 1/2 lbs without battery
Operating temp. -40 °F to 150 °F
Protection class IP68 dust and waterproof
Humidity 100%, condensing
Vibration ASAE EP455 Section 5.15.1 Random, MIL-STD-810G, method 514.6E-I
Shock Withstands 2M pole drop onto hard surface

Power Supply

Internal battery Removable, Li-Ion 3.4Ah / 11.1V
Operating time 8h in static / 6h in rover mode
External power 9V to 18V, LEMO plug

* Glonass L3 will be provided through future firmware upgrade
** Believe to comply. Subject to ICD description availability
*** Support of QZSS is incorporated and will be provided through future firmware upgrade when QZSS will be operational
**** Measurement accuracy and reliability are dependent on various factors including satellite geometry, obstructions, observation time, ionospheric conditions, multipath, etc.

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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