Low Clearance Alert System for GPS
Low Clearance Alert System for installation on GPS. http://www.lowclearances.com/index.html I don't have experience with this system, but sounds like an alternative to spending $400+ for a new GPS ...
Forum Discussion
We were in WA north of the Columbia. Sign posted saying low clearance. We just pulled over & called WAdot. Very helpful people. An extra foot is adequate. Low clearance signs are 14 & under.
