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.

Document and Resource Library

ImagePart#Product DescriptionQuote
CB-40CB-40Data buoy with polymer-coated foam hull, 40 lb. buoyancyquick_quote


With an overall 14-inch diameter by 48-inch height, the CB-40 can be deployed quickly and easily from a small boat. Fully configured systems typically weigh around 45 lbs.

Topside Plate

A stainless steel topside plate supports solar marine lights and offers a convenient lifting point via (3) eyenuts.

Center Hole

The center hole offers instrument access and includes space for additional instrumentation, battery packs, or other waterproof electronics.

Multi-Vendor Compatibility

Compatible instruments include YSI 6-Series & EXO sondes, Hydrolab Series 5 & HL sondes, Eureka Manta sondes, and In-Situ Aqua TROLL instruments.

Instrument Pipe

A 4-inch stainless steel instrument pipe securely houses the sonde or water quality instrument and includes slotted holes for water flow.

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.

Built to Last

Constructed of cross-linked polyethylene foam with a heavy polymer skin and an indestructible stainless steel frame, the CB-40 is designed for years of service.


ImagePart#Product DescriptionQuote
M550-F-YM550-F-YSolar marine light with flange mount & 1-3 nautical mile range, 15 flashes per minute, yellowquick_quote