Wamblee W440 AIS ​​SART Sniffer, a device able to recognize a NMEA sentence from an AIS receiver codes apparatus AIS SART (also MOB). Connecting the contact closure to the engine allows the boat to turn off the engine in case of accidental fall overboard, as well as enable any other emergency alarm systems on board.  Seen at METS 2011 RAI Amsterdam
S.J. de Waard
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>