Garmin manufactures Global Positioning System receivers for a wide variety or applications. But they can be divided into two basic categories: those designed for outdoor use, most of which are waterproof; and those designed for use inside a vehicle, most of which are not. Most of the waterproof models carry an international standard IPX7 rating, which means they can be immersed in water for 30 minutes at a depth of one meter without suffering damage. Writer Bio
