The SafeLink R10 transmits target survivor information, including structured alert messages, GPS position information and a unique serialised identity number back to the onboard plotter*. An inbuilt high precision GPS receiver provides accurate position information to assist in quick recovery of survivors. It will transmit continuously for a minimum of 24 hours and has a 7 year battery storage life.
It also features a flashing LED indicator light; to aid detection at night and a self test facility with battery use indication.

How SafeLink R10 SRS Works
SafeLink R10 SRS must be mounted on a lifejacket using the attachment clips provided, prior to going to sea
R10 SRS is activated manually in an emergency situation
A unique emergency alert is transmitted to all AIS receivers and AIS enabled chart plotters within a 4 mile radius (typical)
An AIS SAR emergency icon signals the requirement for urgent help in a Man Overboard situation.
Precise target survivor information including GPS position becomes viewable when the chart plotter* cursor is positioned over the emergency alert icon Provides exact location, range and bearing to locate person(s) in need of assistance.
The SafeLink R10 SRS can be manually activated in two easy steps; when installed in the lifejacket the orange safety tab should be released, this ‘arms’ the R10 ready for use. To use, first inflate the lifejacket. When it is inflated, pull the orange tab downwards to pull the red cap off the R10. This will deploy the antenna and automatically switch ON the R10 SRS.
If professionally* fitted to a lifejacket, the R10 SRS can become semi-automatic in operation; the action of the lifejacket inflating triggers the activation of the R10 SRS (see below).

http://www.kannadmarine.com/safelink-r10
http://lrse.com/