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Stonex S850+ GNSS Receiver


The S850+ GNSS receiver from Stonex is equipped with an advanced 1408-channel GNSS board and capable of supporting various satellite constellations.



The Stonex S850+ GNSS receiver is a compact, high-performance receiver equipped with an advanced 1408-channel GNSS board and capable of supporting various satellite constellations, including GPS, GLONASS, BEIDOU, GALILEO and QZSS. The Stonex S850+ GNSS receiver is the ideal solution for any surveying work in the field.

The advanced receiver design gives the S850+ excellent signal tracking ability and interference resistant capacity. It’s lightweight, portable design make the S850+ GNSS receiver an excellent choice for fieldwork in areas with complex terrain.

The Stonex S850+ has integrated Bluetooth, internal Wi-Fi capabilities, a built-in UHF radio and 4G GSM modem that can be used anywhere in the world. It also features an optional IMU system that allows tilted measurement (TILT) up to 60°, quick initialization and fast/precise survey.


  • 1408 channels GNSS board capable of supporting multiple satellite constellations
  • Optional IMU system that allows tilted measurements
  • Large capacity lithium battery and Type-C connector for easy charging
  • Optional integrated UHF radio with range up to 10 km under optimal conditions
  • IP67 certified for use in rugged conditions

Technical Specifications

Board: Unicore UM980
Channels: 1408
GPS: L1 C/A, L1C*, L2P, L2C, L5
Galileo: E1, E5a, E5b, E6*
BeiDou: B1I, B2I, B3I, B1C, B2a, B2b*
QZSS: L1, L2, L5
Update Rate: 20Hz
Operating System: Linux
Memory: 8 GB
Static Survey: 2.5 mm + 0.5 ppm RMS (Horizontal)
5.0 mm + 0.5 ppm (Vertical)
RTK (< 30 Km): 8 mm + 1 ppm (Horizontal)
15 mm + 1 ppm RMS (Vertical)
Code Differential: 0.40 m RMS
SBAS Accuracy: 0.60 m RMS
Internal UHF Radio
Model: TRM121
Type: Tx – Rx
Frequency Range: 410 – 470 MHz
902.4 – 928 MHz
Channel Spacing: 12.5 KHz / 25 KHz
Transmission Power: 1 watt
Maximum Range: 3-4 km in urban environment
Up to 10 Km with optimal conditions
Size: 140 mm x 140 mm x 71 mm
Weight: 1.10 kg
Operating Temperature: -30 °C to +65 °C
Storage Temperature: -40 °C to +80 °C
Waterproof/Dustproof: IP67
Shock Resistance: Designed to endure a 2 m pole drop onto a concrete floor with no damage
Vibration: Vibration resistant
Power Supply
Battery: Rechargeable 7.2 V – 6.900 mAh
Voltage: 9 to 28 V DC external power input with over-voltage protection (5 pins Lemo)
Working Time: Up to 10 hours
Charge Time: Typically 4 hours

* Available with firmware update.


  • B10+150212 – Stonex S850+, GNSS, 1408Ch, 4G, WiFi, BT
  • B10+160212 – Stonex S850+, GNSS, 1408Ch, 4G, WiFi, BT – Made in Italy
  • 40-450219 – Stonex S850+ IMU firmware activation
  • 40-450218 – Stonex S850+ UHF firmware activation



The S850+ GNSS receiver from Stonex is available through TerrisGPS. If you would like more information about this product, please feel free to get in touch with us by completing the Request Pricing form.

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Client Testimonials

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"Thank you for your prompt service. All seems to be working well again. Your techs were very helpful with the troubleshooting."
J.O. - Ground Navigation
"Thanks for all the troubleshooting help, also to John for his assistance and the prompt answers from you guys!"
F.A. - Survey Industry

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