Email Us: [javascript protected email address] Toll Free: 1-866-642-1880

Stonex S900A-TH GNSS Receiver

The Stonex S900A-TH GNSS receiver is equipped with a high performance, 800 channel GNSS board capable of supporting multiple satellite constellations, including L-Band corrections.



The Stonex S900A-TH GNSS receiver is equipped with a high performance GNSS board with 800 channels that is capable of supporting multiple satellite constellations: GPS, GLONASS, BeiDou, Galileo, QZSS and IRNSS, as well as L-Band corrections.

Through the 4G GSM modem, a fast internet connection is guaranteed for the reception of correction data and the management of the maps in the background. In the amazingly compact structure, the Bluetooth and Wi-Fi modules allow always reliable data flow to the controller, and the integrated TX/RX UHF radio with selectable frequencies, make S900A-TH the perfect system for a GNSS Base + Rover.

The Stonex S900A-TH integrates an E-Bubble sensor that allows for measurement of difficult points even when the pole is not level. You can calculate the correct coordinate of a point by measuring from 3 different positions. The S900A-TH is also equipped with the optional IMU technology. Fast initialization, up to 60° inclination and the correct coordinates of a point with a simple click.


  • 800 channels GNSS board capable of supporting multiple satellite constellations
  • Support PPP service with L-band corrections
  • aRTK functionality
  • Integrated UHF double frequency radio, 410-470MHz and 902.4-928MHz
  • 4G LTE and Bluetooth / WLAN datalink support
  • Integrates E-Bubble sensor
  • Optional IMU System that allows tilted measurement
  • Rugged magnesium housing
  • 2 rechargeable and replaceable intelligent lithium batteries (hot swap) capable of up to 12 hours operation
  • Easy configuration from Web UI

Technical Specifications

GPS: L1 C/A, L1C, L1P, L2C, L2P, L5
GLONASS: L1 C/A, L1P, L2 C/A, L2P, L3
Galileo: E1, E5a, E5b, ALTBOC, E6
BeiDou: B1, B2, B3, ACEBOC
QZSS: L1 C/A, L1C, L2C, L5, LEX
SBAS: L1 C/A, L5
L-Band: Atlas H10/H30/Basic (optional)
Bridging of RTK Outages: aRTK – works up to 20 minutes
Channels: 800
Position Rate: 10 Hz (optional 20-50 Hz)
Signal Reacquisition: < 1 s
RTK Signal Initialization: 2-4 seconds
Hot Start: Typically < 15 s
Initialization Reliability: > 99.9%
Internal Memory: 16 GB
Micro SD Card: Expansion Slot up to 32 GB
Tilt Sensor: E-Bubble, IMU (optional)
High Precision Static: 2.5 mm + 0.1 ppm RMS (Horizontal)
3.5 mm + 0.4 ppm RMS (Vertical)
Fast & Static: 3.0 mm + 0.5 ppm RMS (Horizontal)
5.0 mm + 0.5 ppm RMS (Vertical)
Code Differential: 0.25 m RMS
SBAS Accuracy: 0.25 m RMS
RTK (< 30 Km): 5 mm + 0.5 ppm RMS (Fixed RTK Horizontal)
10 mm + 0.5 ppm RMS (Fixed RTK Vertical)
Internal UHF Radio (optional)
Type: Tx – Rx
Frequency Range: 410 – 470 MHz
902.4 – 928 MHz
Channel Spacing: 12.5 KHz / 25 KHz
Maximum Range: 3-4 Km in urban environment
Up to 10 Km with optimal conditions
Size: Φ 157 mm x 76 mm
Weight: 1.19 kg (with one battery)
1.30 Kg ( with two batteries)
Operating Temperature: -40 °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: 2 rechargeable and replaceable 7.2 V – 6.900 mAh intelligent lithium batteries
Voltage: 9 to 28 V DC external power input with over-voltage protection (5 pins Lemo)
Working Time: Up to 12 hours (2 battery hot swap)
Charge Time: Typically 4 hours


The S900A-TH 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.

Testimonial Icon

Client Testimonials

This page is having a slideshow that uses Javascript. Your browser either doesn't support Javascript or you have it turned off. To see this page as it is meant to appear please use a Javascript enabled browser.

"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

Testimonial Icon

Copyright , TERRISGPS, All rights reserved, Privacy Policy, Terms