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ACR HydroFix Hydrostatic Release Unit (HRU)

ACR HydroFix
Hydrostatic Release Unit (HRU)


ACR made a significant advancement in the safety, reliability and affordability of Category 1 EPIRBs with the introduction of the new ACR HydroFix Hydrostatic Release Unit (HRU). Each and every HydroFix HRU is 100% factory tested prior to installation. The unique design requires no cutting blades or pyrotechnics to release an EPIRB from its bracket.

ACR Electronics, Inc., the world leader in safety and survival technologies, has received approvals in the USA, Europe and in many nations world wide to begin shipping the HydroFix HRU, a highly reliable, quick-change hydrostatic release mechanism used to automatically deploy Category 1 Emergency Position Indicating Radio Beacons (EPIRBs) in an emergency.

The ACR-manufactured HydroFix is standard on all ACR Category 1 EPIRBs including the GlobalFix, RapidFix and SATELLITE2 406 EPIRBs. Category 1 EPIRBs are those beacons designed to deploy automatically and float free when a ship sinks.

The HydroFix will be available as an affordable factory recommended replacement part. It is backward compatible and will fit all ACR Category 1 float-free mounting brackets, except the original RLB-23.

“ACR felt it could improve the product by designing and manufacturing a system best suited to our unique specifications, rather than using an off-the-shelf release,” said Chris Wahler, Director of Marketing for ACR. “One unique new feature is the release mechanism (patent pending) designed into the HydroFix, which does not cut or break a bolt resulting in a quick, seamless release.”

In the event of a vessel sinking, the HRU senses water pressure and releases the EPIRB from its protective bracket at a depth of 1.5 to 4 m (4.9 to 13.1 ft). All HRUs are recommended for replacement three years from date of manufacture or two years from installation.




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ACR HydroFix Hydrostatic Release Unit (HRU)
ACR HydroFix Hydrostatic Release Unit (HRU) - Inset