Instrument Bottom Mounts

DeepWater Buoyancy’s BTM-AL50 bottom mounts are designed for ADCP deployment in shallow ocean waters, rivers, coastal areas, and anywhere else where the size and remote recoverability of the AL-200 and AL-500 TRBM are not required.

These rugged diver-serviceable tripods come ready to accept your ADCP and battery canister, and can be modified to fit CTD, wave / tide gauge, velocimeter or other instrumentation.

BTM-AL50’s are manufactured using 5000 series aluminum, galvanically-isolated fasteners, and are fitted with zinc anodes for superior corrosion resistance. The double axis gimbal keeps your ADCP oriented to vertical after deployment and is manufactured using ultra-high molecular weight polyethylene to deter marine growth.

The units' three foot pads are supplied with through holes for ballast or for spiking, depending on your application. Standard (10lb/4.5kg) urethane-coated ballasts are provided for each of the three legs. Additional ballast is available upon request.

ADCP Instrument Bottom Mount style BTM-AL50-A

BTM-AL50-A

This traditional welded unit can be deployed by diver or lowered to the seafloor by line from small vessels. Instrumentation is easily accessible for battery change out or maintenance.

ADCP Instrument Bottom Mount style BTM-AL50-B

BTM-AL50-B

Like the traditional unit in all other ways, this robust bottom mount is collapsible for ease of transportation and lower shipping costs. The pinned and bolted design makes for a quick and easy assembly. A brace kit is also available for additional stability with increased payloads.

Contact Us

To get assistance in choosing or configuring the correct product, to obtain a quote, or to place an order, please contact us.

Related Media

Exhibiting at IPF 2025

Exhibiting at IPF 2025

DeepWater Buoyancy is exhibiting at Oceantic Network’s International Partnering Forum on April 28-May 1, 2025 in Virginia Beach, VA.

Ocean Business 2025

Ocean Business 2025

DeepWater Buoyancy will be exhibiting at Ocean Business 2025 at the National Oceanographic Centre in Southampton UK.

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