What is a PLB or Personal Locator Beacon? - ACR ARTEX
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ACR ResQLink 400 - Buoyant GPS Personal Locator Beacon PLB-400 GPS Satellite SOS Emergency Personal Locator Beacon - Programmed for Rest Of World Registration : Amazon.co.uk: Electronics & Photo
Fastfind 220 PLB (GPS)
DIVER TEST: Nautilus LifeLine GPS Personal Locator Beacon