McMurdo BreakHRU Hydrostatic Release Unit

The McMurdo Hydrostatic Release Unit (BreakHRU, for Category 1 EPIRB) is smaller than other HRUs currently available, unique in its use of a small pyrotechnic charge that enables EPIRBs to automatically float free. It is designed for boaters who want a compact unit classified non-hazardous, complying with the latest SOLAS and IMO resolutions.

Using technology developed exclusively by McMurdo, the pyrotechnic charge activates the HRU when submerged in water less than 13 feet deep. Once activated, the EPIRB is automatically released. This unit fits the footprint of existing HRUs and has a service life of two years. Browse more options in our marine safety category.

Key Features

• Fits existing HRU footprint configuration
• pyrotechnic activation under 13ft configuration
• Under 13 Feet Submersion trigger depth

Frequently Asked Questions

What depth triggers this HRU's release? Submersion in water less than 13 feet deep.

What technology activates this HRU? A small pyrotechnic charge, developed exclusively by McMurdo.

What is this HRU's service life? 2 years.