It doesn’t take a genius to know that technology, water and dust are not good bedfellows. But a lot of times, handheld GPS devices are designed to be ‘rugged’ so that you can take it with you on a hike or trail and not worry about it. Many cycling GPS units are also waterproof or water resistant so that a surprise rainfall doesn’t turn your navigational device into an expensive paperweight.
Chances are, some of your handhelds are rated for rugged conditions which involve dust and rain. This rating is known as an IP or IPX rating and you’ve probably seen it listed in the specs on some devices, but unless you look into it, it probably didn’t mean much. As it turns out, IP ratings are basically a universal classification system that allows users and manufacturers know exactly how much water or dust the unit can take without worry. read more