CB-25 Data Buoy
The CB-25 data buoy is a compact, affordable, and easy to deploy platform for both water and atmospheric observations.

Features
Tech Specs
- Hull Outer Diameter: 18” (45.72cm)
- Hull Height: 11” (27.94cm)
- Center Hole Inner Diameter: 5.5” (13.97cm)
- Center Hole Height: 11" (27.94cm)
- Pass-Through Hole Diameter: 1.5" (3.81cm)
- Tower Height: 8.2” (20.83cm)
- Solar Panels: 3x 4-watts
- Weight: 22 lb (9.98kg)
- Net Buoyancy: 50 lb (22.68kg)
- Hull Material: Cross-linked polyethylene foam with polyurea coating & stainless steel deck
- Hardware Material: 316 stainless steel, 304 stainless steel (lifting handles); Galvanized steel (ballast chain)
- Tethering Attachments: 4x 3/8” eye nuts
Accessories
Case Studies
A New Kind of Sentinel on Lake Superior
For more than 100 years, the Stannard Rock Lighthouse has kept a watchful guard over Lake Superior. But now, a new weather buoy is joining the watch in a remote part of Lake Superior, providing much-needed weather data to local mariners, the National Weather Service (NWS), and researchers. Scientists from the Superior Watershed Partnership (SWP), Lentic Environmental Services (LES), and the University of Colorado-Boulder deployed the buoy on the lake […]
Read More →Cellular Data Buoys Predict E. Coli
The Chicago Park District is one of the largest municipal park managers in the nation with 8,100 acres of green space spread across 580 different parks. It also manages many indoor facilities, historical landmarks and beaches. At eight of its most popular beaches, the District has used cellular data buoys, for four years, in an effort to more quickly predict E. Coli levels that could necessitate beach closures. Chicago Park […]
Read More →Kadettangen Beach Construction Project
Not far from Oslo, Norway, a massive effort is underway to expand a public beachfront. The work is taking place along an area of Oslofjord called Kadettangen, a small peninsula that juts out into the bay. Once the work is finished, public officials expect that the new beach area, along with other enhancements planned for the peninsula like bike paths and volleyball courts, will help attract visitors from near and […]
Read More →