rescue device * Under standard climatic conditions [20° ± 5° C,<= 60 % RH), including test cycles defined in the manual but without any activation. The new W420 device is a compact personal safety device, designed to guarantee the safety of each member of a vessel’s crew or of any other professional crew working at sea. It can be fixed to self-inflatable jackets via the tear-to-open tape retainer or via the handy clip provided for fixing to the inflating mouthpiece. Should the wearer fall overboard, the W470 starts working automatically thanks to the sea-sensors situated on the rear of the device...