Surfbee Flow Seeker II

The daily driver and workhorse of the range, designed for a wide variety of gauging sections and sensor deployments. It’s maneuverable, portable, and can adapt to various sensors and handle tricky situations. The inflatable hull allows for easy transportation, storage, and replacement. Autonomous transects and bathymetry as standard.

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Key specifications:

  • Dimensions: 1.65m x 0.75m x 0.1m

  • Weight: 13.5kg (without batteries), includes M9 mounting hardware and camera

  • Max speed: 4m/s (3m/s cruise)

  • Minimum Depth: 0.25
  • Temperature Range: -10°C to 45°C
  • Max. Payload: up to 10 KG

Payload options:

  • Custom Payload

  • Sontek RS5

  • Sontek S5

  • Sontek M9

Standard Features

  • Inflatable hull for easy transportation, storage, and replacement

  • Real-time boat telemetry data with battery level and GPS location

  • GNSS with multi-constellation, multi-frequency, high precision positioning, and heading.

  • Onboard camera with live streaming to transmitter for situational awareness

  • Common power tool battery compatibility

  • Waypoint navigation and programming via Surfbee App

  • Position hold (automatically holding position midstream)

  • Return to home via command or low battery

  • Long-range (1km) transmitter, dust and spray-proof with USB-C charging

  • Specific ADCP Surfbee App functions for autonomous gauging, moving boat, and stationary method

  • RTK via NTRIP providers for precise positioning in the Surfbee App (requires internet connection via Wifi or 4G)


Optional Features

  • Surfbee Multiport: Advanced Sensor Integration Hub with GNSS RS232 Transmission (including heading), Power Supply, and Expandable Outputs

  • Custom Sensor Integration

  • RTK Base Station (Relative RTK for connectivity-independent accuracy)

  • Splitter Cable for Sontek M9 and PCM with Surfbee Multiplug

Autonomous Gauging

Take advantage of GPS autonomous gauging, Allowing the Hydrographer to concentrate on the data not the deployment.



  • Steering Redundancy

  • Position Hold Mid Stream

  • Common Battery

  • ADCP or Transducer

  • Specific Mounts.

  • Autonomous Transects (Moving Vessel and Stationary)

  • Waypoint Mission Planning


  • Surfbee Powered ADCP

Surfbee – Product Selection Guide – Series 2

SURFBEE – USV Brochure – Series 2 (NZ)

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