Weighing in at 5.3 ounces and measuring about the size of a mobile phone, McMurdo's Fastfind satellite personal location beacon just may be the most compact and versatile waterproof 406 MHz emergency beacon on the market, according to McMurdo's U.S. distributor Revere Supply. The user-activated unit is certainly tiny enough to fit into a pocket or tackle box. Fastfind comes with an integral 50-channel GPS system and operates on the global search-and-rescue satellite communication system. The integral battery features a storage life of five years; once activated, Fastfind transmits a distress signal for at least 24 hours at 5 watts. The retail price is $299. Call 877-REVERE-8, or visit www.reveresupply.com.