We are world‘s undisputed market and technological leader for underwater locator beacons in the maritime sector.
The answer to TSO-C121b: BLUE90, the 90 days underwater locator beacon for aviation.
The new generation has already landed:
SID88 – the new low frequency underwater locator beacon for aviation.
Quality and Security
Info & Support
+49 8376 929900
On ships wich are built on or after July 1, 2014 ULBs must ensure a regulatory transmission time of at least 90 days. The answer: PT9 NINETY
PT9 C-PROOF, the world‘s most widely-used underwater locator beacon on protective data capsules. Field approved and corrosion resistant.
All aircraft with a maximum take-off mass of over 27,000 kg operating over oceanic areas are to be fitted with the low frequency ULB by January 1, 2018.
The 90 Days ULB
BLUE90 is an ULB with an operating time of 90 days after activation. The lithium content of the battery is less than 1 gram, so there is no restriction for transport.