$500; www.kannadmarine.com

The Federal Communications Commission has approved for use the SafeLink R10 Survival Recovery System (SRS). Designed to be attached to a PFD and activated by its wearer, the R10 SRS uses GPS and Automatic Identification System (AIS) technology to send structured alerts with precise location information to AIS-equipped vessels within a 4-mile radius.

This article originally appeared in the July 2012 issue of Power & Motoryacht magazine.