Micro-Wave River Velocity Meter

Micro-Wave River Velocity Meter

The Micro-Wave River Velocity Portable Meter gives you precise speed measurement from a stationary position outside the body of water. This will help you gain accurate water speed measurement, designed specifically to measure streams and rivers. The Micro-Wave River Velocity Meter Portable is perfect tool for flood management applications

The Micro-Wave River Velocity Meter Portable is extremely valuable for measuring water surface velocity during high velocity flows and flood conditions where using contact measurement instruments pose a risk to safety.


  • Touchscreen controls
  • Built in data logger with automatic date and time information
  • Allows scientists to determine the surface velocity of water
  • Includes cosine error correction, allowing the unit to compensate for horizontal and vertical angles
  • Wide velocity flow range (0.2 – 20 m/s)
  • Powered by replaceable & rechargeable Li-ion batteries
  • Accepts tripod mounting
  • User friendly measurement and reading
  • Data port for computer.
  • Internal cosine error correction, allowing the unit to compensate for vertical angles up to 60 degrees.

Measurement specifications

Minimum Velocity 0.2 m/s
Maximum Velocity 20 m/s
Measurement Accuracy ± 0.3% – Speeds are rounded down to the nearest tenths of a unit

Mechanical specifications

Weight 1.2 kg (2.4 lb)
Dimensions L 21.8 cm (9.2 in), H 25,9 cm (10 in), D 7.9 cm (3.2 in)
Case Material Die Cast Aluminium & Composite (PVC)

General specifications



MPS (meters-per-seconds), FPS (feet-per-second), KPH (kilometres-per-hour), MPH (miles-per-hour) and Knots
Horizontal Cosine 0 °- 60 °
Sensitivity setting 0-8

Antenna Parameters

Type Ka-Band
Nominal Transmission Frequency 34.7 GHz
Nominal Horizontal Beam width 12° (+/- 1°)

Polarization Circular

Nominal Microwave Power Output 15 mW nominal mW
Maximum Aperture Power Density 1 mW/cm2


Ambient Temperatures -22°F to +158°F, -30°C to +70°C
Maximum Humidity 90% relative humidity at 99°F (37°C non-condensing)
Water resistance meets International Robustness Standard IEC 529:1989 and European Community Standard EN 60529


Supply Voltage Range 7.2VDC – 20VDC
Power Supply replaceable Li-ion batteries, 18V / 1.3Ah

Power Consumption

Standby 0.200 amperes
Antenna on 0.450 amperes

Existing Products

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