CB-40 Data Buoy
The CB-40 offers a compact and affordable platform for deploying water quality sondes and other instruments that integrate power and data logging.

Features
Tech Specs
- Hull Outer Diameter: 14.0” (35.6cm)
- Hull Height: 20.0” (50.8cm)
- Instrument Pipe Inner Diameter: 3.9” (9.83cm)
- Instrument Pipe Height: 48.0" (121.9cm)
- Weight: 38 lb (17kg)
- Net Buoyancy: 40 lb (18kg)
- Hull Material: Cross-linked polyethylene foam with polyurea coating & stainless steel deck
- Hardware Material: 304 stainless steel
- Mooring Attachments: 3x 5/8” eyenuts
Q&A
Accessories
Case Studies
Suttle Lake Data Buoy
For some time, sockeye salmon weren’t able to reach Oregon’s Suttle Lake due to barriers along the Deschutes and Metolius Rivers that kept them out. But thanks to recent remediation efforts, the lake has recently been seeing more sockeye migrating from the Pacific Ocean to spawn. That would be no problem if the lake had a healthy food web, but there is evidence that salmon native to Suttle Lake, kokanee […]
Read More →Northern Caspian Sea Dredging
Kazakhstan is a country not often associated with having a shoreline, let alone a marine environment. However, in the western corner of Kazakhstan lies a section of coastline along the Caspian Sea. Through a network of rivers and channels, the Caspian Sea is actually connected to the trade routes of the world’s oceans. To support the expanding oil fields of Western Kazakhstan, a deep-water port is being constructed in the […]
Read More →Campus Pond An Educational Tool
A small campus pond on the New Paltz branch of the State University of New York has a big effect on water quality downstream. Called “The Gunk” by students and staff because of its position near the Shawangunk Mountains, the pond flows directly through the Wallkill River, a tributary of the mighty Hudson River that crosses all of eastern New York. Though The Gunk isn’t a very big pond, researchers and […]
Read More →