River monitoring buoy
River monitoring buoy
Water quality data buoy
Water quality data buoy

CB-50 Data Buoy

The CB-50 data buoy is an ultra-portable real-time system for short-term or seasonal monitoring of dredging projects, industrial spills, natural disasters, and other emergency response situations.

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Features

Compact data buoy

Compact

With an overall 18-inch diameter by 37.5-inch height, the CB-50 can be deployed quickly and easily from a small boat. Fully configured systems typically weigh around 50 lbs.

Marine beacon

Tower

A removable topside foam tower protects the electronics, supports solar marine lights, and offers a convenient lifting point via (3) 5/8” eyenuts.

Buoy deployment pipe

Center Hole

The 5.5” ID center hole is designed to securely house X2-SDL data loggers. Empty canisters are also available for user-supplied electronics.

Data buoy sensor connections

Sensor Connections

The X2-SDL is configured with three sensor ports for connection to industry standard communication protocols including SDI-12, RS-485 and RS-232.

Water quality sonde deployment

Instrument Cage

An optional instrument cage provides a secure mounting location for water quality sensors, multi-parameter sondes, depth sonar and more.

Data buoy navigation beacon

Solar Beacon

The optional solar marine light has a one to three nautical mile range and securely mounts to the buoy top plate for maximum visibility.

Data logging buoy

Data Logging

The CB-50 data buoy is designed to accommodate the X2-SDL submersible data logging system, which includes integrated power supply and optional wireless telemetry.

Cellular data buoy

Wireless Communications

The X2-SDL data logger is available with radio-to-shore, cellular and Iridium satellite communications. An integrated antenna mounts securely beneath the tower.

Small durable data buoy

Built to Last

Constructed of cross-linked polyethylene foam with a heavy polymer skin and an indestructible stainless steel frame, the CB-50 is designed for years of service.

Tech Specs

  • Hull Dimensions: 20" (50.80cm) outside diameter; 12" (30.48cm) tall
  • Tower Dimensions: 13" (33.02cm) outside diameter; 10" (25.40cm) tall
  • Center Hole Dimension: 5.5" (13.97cm) inside diameter
  • Weight: 35 lbs. (no payload); 50 lbs. (with data logger & solar marine light)
  • Buoyancy: 50 lbs.
  • Hull Material: Cross-linked polyethylene foam with polyurea coating & stainless steel deck
  • Hardware Material: 316 stainless steel
  • Mooring Attachments: 1 point, 3/4" eyenut

Q&A

Why is the CB-50 buoy best suited for short-term applications?

The CB-50 is light enough to ship in a box rather than on a pallet, which significantly reduces freight costs. It also deploys easily, as no large boat or crew is necessary. Once deployed, relocating the system is as easy as lifting the anchor, moving to the appropriate location, and dropping the anchor.

Instead of using solar charging, the CB-50 buoy supports the X2-SDL Submersible Data Logger that is powered by sixteen user-replaceable D-cell alkaline batteries. When outfitted with wireless telemetry, the data logger transmits battery voltage as a diagnostic parameter to take the guesswork out of battery replacement frequcency (typically necessary every several months). The integrated X2-SDL submersible data logger is compatible with most water sensors on the market, making it a very flexible platform for short-term, portable, and even seasonal projects.

What important considerations are necessary for ballast weight?
An instrument cage is an optional addition to the CB-50 buoy. No extra weight is needed if the system includes any instrument cage model (CAGE, CAGE-EXO, etc.). If the system does not include an instrument cage, at least 20-25 pounds of extra weight should be added to the buoy frame. NexSens offers an optional 25 lb. ballast weight (PN# BAL25) that can be integrated between the buoy frame and mooring eye.
Can I integrate my own electronics on this platform?
While the CB-50 is designed for use with the X2-SDL Submersible Data Logger, the buoy has a 5.5" diameter hole in the center of the hull for user-integrated waterproof hardware. Upon request, NexSens can offer a size-compatible empty waterproof canister for integrating third-party electronics. For more information on custom electronics integration options, contact us at info@nexsens.com.

Case Studies

Cellular Data Buoys Predict E. Coli

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Lake Erie is described by many as the "walleye capital of the world," but dwindling populations of the fish pose a concern for Great Lakes fishermen. The region's multi-billion-dollar commercial and recreational fishing industry relies heavily on walleye, and the last major walleye hatch in Lake Erie occurred in 2003. Hatch sizes since then have been, at best, below average. A six-year period of substandard spawning is unprecedented; worse yet, […]

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Predictive E.coli Modeling

The Tom Ridge Environmental Center is located at the entrance to Presque Isle State Park in Erie, Penn. TREC is open year-round, offering visitors insight to what they can expect at Presque Isle State Park and the surrounding Great Lakes Region. TREC also serves as a center for research, contributing to conservation efforts, promoting environmental awareness, and helping to preserve the unparalleled beauty of Presque Isle. The Regional Science Consortium […]

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