GME MT610G Personal Locator Beacon Every year, thousands of people across the globe are rescued with the help of an emergency beacon, and more than 50% of Australian rescues involve a GME emergency beacon. A Personal Locator Beacon (PLB) is an important piece of safety equipment which could help save your life should you ever find yourself in an emergency. The MT610G PLB is the only Australian-made PLB on the market, as GME is the only manufacturer of emergency beacons in Australia. GME has been manufacturing emergency beacons in Australia for over 20 years. The MT610G PLB offers a 7-year battery life from the date of manufacture, marked on the bottom of the beacon. At any time within the battery life period, the beacon will transmit for a minimum of 24hours once activated.