We have had a Rand McNally RV GPS for about three years. It has routed us through San Francisco, down CA 1 between Monterrey and Hearst Castle, down CA 111 to Temecula and under an 8'8" bridge in PA. It also routed us through a loop through a subdivision.
fortunately we ignored that one. Now we use a Garmin along side that was made for a car for comparison and it gives better routing if you choose to prefer highways. Before I throw the Rand out my widow at high speed, we are looking at a Garmin RV GPS.
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