PT9 C-PROOF is a
seawater-proof underwater locating device according to SAE AS 8045, which has
been specifically developed for the installation on data storage capsules/final
recording Medias (FRM) of Voyage Data Recorder Systems (VDR/S-VDR). The PT9 C-PROOF
has been designed to send a locating signal for at least 30 days in the case of
being activated by water immersion.
The PT9 C-PROOF is
approved by the BSH, The German Federal Maritime and Hydrographic Agency.