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YSI EMM700 Data Buoy Platform

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The EMM700 buoy is a medium-sized platform suitable for near-shore and inland water applications.  It is designed around logging, sensors, and remote telemetry.  The bay buoy platform will deliver data for years, making it suitable for research and long-term monitoring applications.


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Have a question about your YSI EMM700 Data Buoy Platform? Check out the support page with resources compiled just for you.

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Need service for your system? Here you’ll find authorized service centers and instructions on how to get the service you need.

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We have a large pool of water quality and hydrology instruments available to you for rental.


With more free-board and greater load capacity, this buoy supports a wide array of water quality instrumentation and other systems.

Heavy-duty, lightweight foam hull withstands collisions and harsh conditions in lakes, ponds, rivers, reservoirs, and near coastal applications.

The YSI Bay Buoy is easy to handle and can be deployed from most small vessels.


  • Suitable for lakes, rivers and coastal areas
  • Non-sinkable foam hull
  • Anti-fouling paint protects submerged surfaces
  • Compact design is easily deployed
  • Accepts third-party monitoring sensors


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Specification Sheets

EMM700 Bay Buoy


Diameter 48 in
Materials Softlite Ionomer foam hull, stainless steel framework
Buoyancy weight 700 lbs












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