NexSens XB-200 Data Buoy

The NexSens XB-200 data buoy is ideal for water monitoring applications requiring portability and quick deployment, yet strong enough for rough water.


  • Integrated 15-watt solar panels for 45-watts of solar charging
  • Three 4" diameter sensor holes for sensor deployment
  • Topside plate supports solar marine light, weather stations, and other sensors
Your Price Call
Stock Check Availability  

The XB-200 represents the next generation of data buoy platforms from NexSens Technology. It is ideal for applications requiring portability and quick deployment, yet strong enough for rough water. The platform is a popular choice for limnology research, dredge turbidity monitoring, temperature or dissolved oxygen profiling, fisheries and aquaculture monitoring, harmful algal bloom detection, and oil spill response.

The hull and solar tower on the XB-200 are made from UV stabilized, linear low-density polyethylene (LLDPE), offering both flexibility and toughness. The hull is filled with a lightweight, closed-cell polyurethane foam to keep the buoy afloat even if pierced or damaged. Batteries are housed in a waterproof compartment in the buoy hull with additional room for measurement electronics and telemetric equipment.

When configured with the NexSens X3 4G LTE cellular or Iridium satellite data logger, all electronics are mounted under the solar tower top plate for quick access and easy replacement. Three 4” pass-through ports accommodate water monitoring sensors, and a configurable top plate accommodates weather sensors along with a navigation beacon. Commonly integrated sensors include weather stations, wave sensors, thermistor strings, multi-parameter sondes, Doppler current profilers, and other monitoring instruments.

  • Hull Height: 22.0” (55.8cm)
  • Battery Well Inner Diameter: 9.7” (23.6cm) above battery
  • Battery Well Height: 20.5" (52.1cm)
  • Pass-Through Hole Diameter: 4.0" (10.2cm)
  • Tower Height: 20.0” (50.8cm)
  • Solar Panels: 3x 15-watts
  • Weight: 67 lb. (30.4kg)
  • Net Buoyancy: 200 lb. (91kg)
  • Hull Material: UV stabilized, linear low-density polyethylene (LLDPE) with closed-cell polyurethane foam fill
  • Hardware Material: 316 stainless steel
  • Mooring Attachments: 2x 5/8” eye nuts
  • (1) XB-200 solar tower with (3) 15-watt solar panels
  • (1) XB-200 buoy hull with battery well lid & power connections
  • (1) XB-200 instrument cage with integrated cross members for mooring clamps
Questions & Answers
No Questions
Did you find what you were looking for?

Select Options

  Products 0 Item Selected
Part #
NexSens XB-200 Data Buoy
XB-200 data buoy with 4" instrument holes & (3) 15-watt solar panels, 200 lb. buoyancy
Request Quote
Check Availability  
  Accessories 0 Item Selected
Notice: At least 1 product is not available to purchase online
Multiple Products

have been added to your cart

There are items in your cart.

Cart Subtotal: $xxx.xx

Go to Checkout

In The News

Current Monitoring after the Francis Scott Key Bridge Collapse

On March 26th, according to The Baltimore Sun , a 984-foot, 112,000-ton Dali lost propulsion and collided with a support column of the Francis Scott Key Bridge, collapsing the structure. Soon after the event, search and rescue, salvage crews, and other emergency responders were mobilized after the collision. As salvage efforts progressed in early April, NOAA’s Center for Operational Oceanographic Products and Services (CO-OPS) responded to a request for real-time tidal currents data and deployed a current monitoring buoy—CURBY (Currents Real-time BuoY)—into the Patapsco River north of the Francis Scott Key Bridge.

Read More

Soundscapes of the Solar Eclipse: Citizen Science Supporting National Research

On April 8, 2024, millions of people around the world had their eyes glued to the sky to witness a historic cosmic event. The total solar eclipse captured the headlines and the minds of many who became eager to gaze at the heavens as the sky went dark for a few minutes. However, not everyone used their sense of sight during the eclipse, some were listening to the sounds of the natural world around them as the light faded from above. The Eclipse Soundscape Project is a NASA-funded citizen science project that focuses on studying how the annular solar eclipse on October 14, 2023, and the April 8, 2024 total solar eclipse impacted life on Earth.  The project revisits an initiative from the 1930s that showed animals and insects are affected by solar eclipses.

Read More

Applied Research and Innovative Solutions: Creating CHNGES at Western Kentucky University

Long-standing environmental monitoring programs have the power to support a large number of research initiatives and policy changes—however, actually starting these networks can prove challenging. Not only is starting the program difficult, but keeping things operational for decades to come has also been challenging for environmental professionals hoping to make an impact with applied research. Jason Polk, Professor of Environmental Geoscience and Director of the Center for Human GeoEnvironmental Studies (CHNGES) at Western Kentucky University, is all too familiar with this process.

Read More