With a high-sensitivity GPS receiver, WAAS (wide area augmentation system) capability, automatic routing, and detailed mapping, the handheld Garmin GPSMAP 60CSx can be a valuable companion in the field, on trails, on the water, or over the road. Powered by two AA batteries, it comes with a built-in Americas auto-route base-map, an electronic compass, and a barometric altimeter. The unit weighs 7.5 ounces with batteries, and it compatible with most MapSource products.