Hammar Hydrostatic Release Units H20E
Test of EPIRB and its Hydrostatic Release Unit (HRU)
Learn how the hydrostatic release unit works to automatically release (by water pressure) and start (by water contact) a float-free EPRIB.
SAVING LIVES AT SEA FOR MORE THAN 40 YEARS
The Hammar H20 is the best-selling HRU in the world, and it has been saving lives on the oceans for more than 40 years. Its safe, reliable, and simple design has earned more worldwide approval than any other unit.
The H20 needs no annual service, maintenance, or spare parts. You simply install a new unit and dispose of the old once it has reached the end of service life.


