3 Metre™ MetOcean Buoy

The ideal data collection buoy for exposed coastal sites and open ocean.

Deployed up to 3,500 metres

Renewable energy source for continued multi-year operation

Able to Integrate with any sensor & telemetry

Life expectancy of 20+ years

  • Weather forecasting
  • Climate studies
  • Operations & safety
  • Resource assessment
  • Maritime safety
  • Marine domain awareness
  • Wind speed & direction
  • Current speed & direction
  • Water levels

The aluminum 3 metre buoy is a very capable and rugged ocean data acquisition system that can be configured with a wide range of sensors for monitoring a variety of meteorological and oceanographic parameters. This platform’s long term survivability and its substantial reserve capacity make it the ideal offshore MetOcean platform.

Primary batteries, solar panels and rechargeable batteries provide power to operate transmitters to both polar orbiting and geostationary satellites simultaneously. Other radio transmitters may also be used. Sufficient power is provided for a navigation light that meets international regulations – an important feature for permanent buoy stations.

The 3 metre has proven to be very reliable and cost-effective platform. The expected service life of the 3 metre platform is in excess of 20 years and properly maintained 3 metre buoys have never been retired due to corrosion.


A wide array of sensors can be integrated:
  • wind speed
  • wind direction
  • air temperature/relative humidity
  • solar radiation
  • barometric pressure
  • wave height
  • direction and period
  • current speed and direction
  • GPS, compass
  • CTD
  • radiation & water quality sonde

2- way telemetry options:
  • Inmarsat IsatData Pro
  • Iridium

Renewable power supply:
Fully solar powered. Up to six 55W solar panels, 400 to 500 amp hour battery capacity.

Navigation aids, alarms and buoy tracking:

  • Standard lamp
  • Radar reflector
  • AIS transponder

GPS package indicates whether buoy is on-station through the AXYS WatchCircle Alarm Position Verification; also includes Buoy Status information (State of charge threshold alert, water intrusion alert) with 3 severity stages, communications inactivity alert

Proven AXYS designed mooring options:
Inverse catenary, chain, semi-taut, or false bottom
Data access & management: 
WatchMan500 on-buoy telemetry power and sensor management
Proven industry accepted platform hull construction:
Welded aluminum, six watertight buoyancy compartments plus one watertight central compartment for electronics, batteries and sensors. Aluminum superstructure and steel substructure are bolted onto the hull.

Get a quote today

We’d love to hear what your needs are, and how our environmental monitoring systems and solutions may contribute to your success. Please take the time to fill out our form below and we will contact you promptly.


2035 Mills Rd, Sidney
BC V8L 5X2, Canada

T:+1 (250) 655-5850
E: customersupport@axys.com

Slijkensesteenweg 2
Oostende 8400, Belgium

T:+32 470 102220
E: customersupport@axys.com