As a pilot and sailor I've used EPIRBs for many, many years. Personal Locator Beacons (PLB) were introduced into the United States not too long ago and I immediately purchased an ACR Sarlink. Now ACR has introduced the ResQLink PLB and this is a backpacker's dream. It's about the size of a flip model cell phone at 1.3" x 1.9" x 3.9" and it weighs a scant 4.6 ounces. Due to space limitations let me just say that the beacon transmits to high and low satellites whose sole purpose is search and… Full review
ACR designs and manufactures rescue beacons and survival gear.
ACR Coverage in the Trailspace Blog
ACR ResQLink is world's smallest personal locator beacon
ACR has released ResQLink, which it claims is the world's smallest 406 MHz personal locator beacon. The ResQLink's small and light waterproof package can be held in one hand and clocks in at less than four inches tall and 4.6 ounces in weight. Read more
August 5, 2011
Outdoor Retailer: Personal locator beacons in the backcountry
February 8, 2010