The SVS-603 Wave Sensor is a highly accurate MEMS-based sensor that reports wave height, wave period, wave direction and more via RS-232 and/or logs acceleration, energy spectra and wave data to the on-board data storage. The SVS-603 represents a new generation in accuracy and completeness for wave sensing electronics whose features include:

  • Very low power consumption; fits the smallest power budget
  • Very small footprint; sold packaged or as bare PCB
  • MEMS sensors account for 3-D motion, rotation and compass heading in all dimensions to cover nine degrees of freedom
  • Sophisticated onboard electronics provide near-real-time wave statistics
  • On-board temperature compensation for highest accuracy
  • On-board data logger capable of logging as much as ten years of wave data
  • Easy configuration to match your exact sensing rate and output requirements
  • Readily interfaced with transmitter using NMEA or other configurable data output
  • Outputs “First-5” Fourier wave coefficients for NOAA compliant data logging/transmission

The SVS-603 can be used to replace existing sensors, to upgrade existing buoys, or to add
wave sensing capabilities to even the most compact buoys. Among the wave data that are available as outputs from the sensor are:

  • Heading in degrees
  • Significant wave height in meters (Hs)
  • Wave period in seconds
  • Wave direction in degrees from north
  • Maximum wave height (Hmax)
  • Wave period at Hmax
  • Full wave spectrum (raw or processed)
  • Custom outputs as required

Other outputs or data manipulations can be incorporated via firmware updates or through calculations on the available data stream.


Output Formats

  • NMEA
  • First-5 wave coefficients
  • User definable
  • Full wave spectrum

Accuracy Metrics

  • H± 0.5cm
  • Period <1%
  • Heading Angle within ± 4 degrees*

Available Ports and Slots

  • RS232
  • Adjustable baud rate (2.4-115.2 kbps)
  • Micro-USB
  • Micro-SD card


  • 53.5mm length
  • 68mm width
  • 23mm height

Input Power

  • 150mW@12V
  • 136mW@5V
  • 5-30VDC

Available packaged and ready to deploy or as a bare circuit card.
* Dependent on orbital buoy motion.

Data Sheet