Used SonTek SL500 Acoustic Doppler Current Meter

Used SonTek SL500 Acoustic Doppler Current Meter


The SonTek Argonaut-SL is an advanced Doppler sonar for water velocity measurement in a horizontal layer.


  • Accurate & reliable water velocity, level, & discharge measurements
  • Measurements are made in a remote sampling volume free from flow distortion
  • Includes FlowPack velocity-index discharge rating software
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Why Buy From Fondriest?


Easily installed on a riverbank, bridge abutment, or other vertical structure, the sleek, low-profile SonTek/YSI Argonaut-SL (Side-Looking) current meters use an advanced Doppler sonar for precise water velocity flow measurement. Robust, all-digital signal processing ensures reliable data collection within a user-programmable velocity cell extending up to 120m.

Ultra-narrow beam widths combined with unmatched side lobe suppression provide the superior acoustic directivity needed to achieve maximum horizontal range free of surface/bottom boundary interference.


  • Water velocity range +/-6 m/s (20 ft/s)
  • Resolution 0.1 cm/s (0.003 ft/s)
  • Accuracy +/-1% of measured velocity +/-0.5 cm/s (0.015 ft/s)
  • Programmable sampling range
  • Vertical acoustic beam for water level
  • Multicell velocity profiling (up to 10 equally-spaced cells)
  • Independent velocity measurement cell (programmable size and location) for flow calculations or special functions
  • Flow computation and output, including total volume
  • FlowPack velocity-index discharge rating software
  • ViewArgonaut software
  • SonUtils PDA software
  • 4MB internal nonvolatile memory
  • Temperature sensor
  • SonTek TrueCompass/Tilt sensor
  • RS232/SDI-12 power/communications cable
Image Part # Product Description Price Stock Order
Used SonTek SL500 Acoustic Doppler Current Meter SL500-R Used SonTek SL500 side-looking acoustic Doppler current meter with mounting plate, 10m cable In Stock
Image Part # Product Description Price Stock Order
Used SonTek Argonaut SL/XR External Battery Case SLXRBAT-R Used SonTek external battery case for Argonaut SL/XR current meters, includes mounting base plate hardware In Stock

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