Ocean Signal HR1E Hydrostatic Release Unit
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Ocean Signal · Code 701S-00608
Hydrostatic release
Safety at sea

Manufacturer image — HR1E Hydrostatic Release Unit.
Image: Ocean Signal
Discover the product
HR1E hydrostatic release mechanism for compatible Ocean Signal EPIRB housings.
Compatible equipment
Documented connections for specific catalogue codes, including parts, requirements and manufacturer sources. Selected equipment ranges are covered; an unlisted combination does not imply incompatibility. Each connection path is assessed separately and is not a complete installation design.
2 documented connections · Sources checked: 2026-10-10
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Equipment connection guide ↗
HR1E Hydrostatic Release Unit · 701S-00608
EPIRB2 / EPIRB3 Pro · HRU · Direct
Category 1 automatic bracket · HRU replacement
No additional adapter is required for this connection.
Functions: HR1E hydrostatic release replacement in the approved Ocean Signal bracket.
Only for the specified Ocean Signal Category 1 automatic brackets; not for manual brackets or other EPIRB brands.
Follow the manufacturer’s expiry date and replacement procedure. The kit includes the HRU, instructions and replacement fittings.
HR1E Hydrostatic Release Unit · 701S-00608
EPIRB1 Pro · housing and HRU · Direct
Category 1 automatic bracket · HRU replacement
No additional adapter is required for this connection.
Functions: HR1E hydrostatic release replacement.
For the automatic EPIRB1 Pro bracket; not for a manual bracket or another brand.
Follow the manufacturer’s expiry date and replacement procedure.
Functions & interfaces
Hydrostatic release
Technical specifications
Equipment type
Safety accessories
Selection & compatibility
This model is included in our catalogue. The exact configuration, compatibility and supply availability are confirmed when you contact us.
Browse the equipment
Kit contents, interfaces and required accessories are checked for the exact part number. Connection to another system does not mean all functions are built in.
Is it right for your vessel?
Tell us about your vessel, existing equipment and requirements. Elmare will help you choose the right configuration.
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+30 210 400 2538
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