The Sigma Low Profile Velocity Sensor’s wafer-thin design makes it ideal for accurately capturing flow velocity data in challenging high-velocity and shallow-depth sites. We recommend combining it with bubbler or ultrasonic level sensors to capture level and measure flow.

Velocity Technology: Submerged ultrasonic Doppler
Additional Features:

  • Areas with persistent foam and reverse flow
  • Sites with high velocity and low level (>3 fps, <2")

Installations: Open channels/pipes and manholes
Additional Options:

  • Bare wire fly lead and j-box for conduit installations
  • Sigma 950 Flow Logger
  • Sigma 910/920/930/930T Flow Logger (obsolete)
  • Sigma 970/980 Flow Meter (obsolete)
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Compatible Logger Datasheet

Sigma 950 Meter

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P.O. Box 389, Loveland, CO 80539-0389 U.S.A.
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