Power Indicator: An Intelligent Hint of Working Time

Quickly check the remaining battery power in real time and figure out the working time without data loss.

Integrated Tx/Rx UHF Modem in a Compact Design

The built-in transceiver radio modem in the compact design of the E300 Pro makes it a full-featured and portable GNSS receiver that works as either base or rover station.

Rugged Design: Better Resistance to Shock and Fall

Use it for many years, for it is strongly made and capable of withstanding rough handling.

RTK Aid Function: Uninterrupted Work

Work without interruption even when RTK corrections fail, powered by our RTK aid function.

Multi-constellations and Multi-frequency

With 1408 channels of GNSS tracking, the E300 Pro provides stable and reliable centimeter-level positioning accuracy in real-time to suit any field data collection applications. All GNSS signals are supported, including GPS, BDS, GLONASS, GALILEO, QZSS, SBAS, L-Band and IRNSS.

Max 60° Tilt Survey: A Different Way of Working

  • Quickly measure accurate points while standing or walking without leveling the pole.
  • Concentrate on where the pole tip needs to go, which is especially useful during a stakeout.
  • Easily start a survey in environments that are hard to reach, such as building corners and slopes.
  • No longer worry about the movement of the pole when measuring, provided that the pole tip is stationary.



GNSS Performance

E300 Pro



Satellites tracking

GPS L1CA, L2P(Y), L2C, L5
BDS B1I, B2I, B3I, B1C, B2a, B2b1
GALILEO E1, E5a, E5b, E61
QZSS L1, L2, L5, L61
L-Band B2b PPP (Only for the Asian-Pacific region)
Channels 1408
Signal reacquisition ×
Cold start < 30 seconds
Warm start < 20 seconds
Hot start < 5 seconds
RTK signal initialization < 5 seconds
Initialization reliability > 99.9%
Update rate 20 Hz
High precision static – H: 2.5 mm + 0.1 ppm (RMS)

– V: 3.5 mm + 0.4 ppm (RMS)

Static and Fast Static – H: 3 mm + 0.5 ppm (RMS)

– V: 5 mm + 0.5 ppm (RMS)

RTK – H: 5 mm + 0.5 ppm (RMS)

– V: 10 mm+0.5 ppm (RMS)

Standard point positioning – H: 1.5 m (RMS)

– V: 2.5 m (RMS)

Code differential – H: 0.4 m (RMS)

– V: 0.8 m (RMS)

SBAS – H: 0.3 m (RMS)

– V: 0.6 m (RMS)

Correction data RTCM V3.X, RTCM2, CMR
Data output GGA, ZDA, GSA, GSV, GST, VTG, RMC, GLL, Binary

Power Supply                       

Battery Rechargeable

Built-in Lithium-ion battery x 1

7.2 V ~ 6800 mAh

Voltage 9 – 28V dc
Working time Up to 12 hours
Charging time Typically 4 hours

Internet Modem

Supported band Global 4G

– LTE FDD: B1, B2, B3, B4, B5, B7, B8, B12, B13, B18, B19, B20, B25, B26, B28

– LTE TDD: B38, B39, B40, B41

– UMTS: B1, B2, B4, B5, B6, B8, B19

– GSM: B2, B3, B5, B8


Operation system Linux
Internal memory 8 GB
Bluetooth BT 5.0 + EDR, BLE
Wi-Fi 802.11a/b/g/n/ac
SIM card yes
TF card ×
TNC Connect internal radio with antenna
5-pin port Connect to external radio and external power; NMEA  output
7-pin port ×
Type-C port Charge and data transmission
Web UI View status, update firmware, set up working mode, download data, etc.
Intelligent voice Broadcast working mode and status
MEMS Fast initialization, dynamic tilt survey up to 60°


Dimension 158 mm x 53 mm
Weight 940 g
Operating temperature -30℃ – +65℃
Storage temperature -40℃ – +80℃
Water/dustproof IP67
Shock – Withstand topple over from a 2 m survey pole onto hard surfaces

– Survive a 1.2 m free drop

Vibration Vibration resistant
Humidity Up to 100%
Indicators Satellites, datalink, battery, Bluetooth
Button The power button, short press to voice broadcast working mode and status
Screen ×
Certificate CE, FCC, NGS, IGS

Internal Radio

Type TX and RX
Emitting power 1 W
Operation range – 3 – 5 km typically

– 10 km with optimal conditions2

Frequency range 410 – 470 MHz
Channel spacing 6.25 KHz3 / 12.5 KHz / 25 KHz / 280 KHz4
Protocol Satel, PCC, TrimTalk, TrimMark III, TRANSEOT(PCC-GMSK), South, HiTarget, GEOTALK, GEOMK3, HZSZ, 900M Hopping4

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