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SonTek Argonaut XR Extended Range

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The Argonaut-XR offers exceptional value for near shore deployments in less than 40 m of water. Designed specifically for mounting on the bottom of a river, channel, or harbour, the XR features a special mode that automatically adjusts one of its measurement cells for changing water level. Its small size, rugged build, and flexible system architecture make the XR attractive for both real-time operation and autonomous deployments.

Argonaut XR

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  • MultiCell feature - 10 water velocity cells plus an eleventh automatically adjusting cell
  • 3D water velocity
  • Integrated piezoresistive pressure sensor
  • Reflected echo intensity output
  • SDI-12
  • Mounting plate for easy installation
  • RS-232 communication protocol
  • ViewArgonaut Windows software for real time data collection, data retrieval, deployment, diagnostics and processing
  • Flexible sampling strategies for reduced duty cycle operation
  • Internal memory (stores over 20,000 samples)
  • Compass/two-axis tilt sensor
  • Temperature sensor on exposed titanium pin for fast response


Argonaut-XR Multicell The MultiCell Feature
MultiCell is an innovative way of current profiling. Combining all the benefits of classical current profiling with the dynamic AutoTide feature, users have the best of both worlds. The Additional dynamic velocity cell adjusts with changes in water level.


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Specification Sheets

Argonaut XR


Frequency 3.0 MHz 1.5 MHz 0.75 MHz
Maximum Range* 6.0 m (20.0 ft) 20.0 m (66.0 ft) 40.0m (131.0 ft)
Resolution 0.2 m (0.6 ft) 0.4 m (1.2 ft) 0.8 m (2.5 ft)
* Maximum range may vary depending on environmental conditions.
Water Velocity
Range ±6 m/s
Resolution 0.1 cm/s
Accuracy ±1% of measured velocty, ±0.5 cm/s
Resolution 0.01°C
Accuracy ±0.1°C
Compass/Tilt Sensor — Built-in calibration procedure to compensate for ambient magnetic fields.
Resolution 0.1°
Accuracy — Heading ±2.00°
Accuracy — Pitch, Roll ±1°
Physical & Environmental
Depth Rating 200 m
Dimensions (dia x h) 15.2cm x 18.0cm (6.0 in x 7.1 in)
Weight in Air 2.5 kg (5.5 lb.)
Weight in Water -0.3 kg (-0.7 lb.)
Operating Temperature -5° to 40°C
Storage Temperature -10° to 50°C
Input Power 7-15 V DC
Typical Power Consumption 0.2 to 0.3 W Continuous | 0.01 W Stand-by
Battery capacity (alkaline) 500 W·h




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