GPS Units-Best for MH's

[Mutt]

I am in the market for another GPS unit, and specifically one that hopefully, will have the correct info as far as bridge clearances, etc. I have an older Garmin 550 Street Pilot, which has worked reasonably well, and accurate about 90% or the time. I am considering purchasing the PC Miler NAV540 GPS unit that truckers use. It appears to have free map updates, but I haven't been able to find out if it has an auto setting as well. What types of units do you use in your MH.
Thanks
David

[lllkrob]

I am currently using an old TomTom GO700. With a recent map update and Low Clearance POI file added it works OK. I am seriously looking at a TomTom XXL540TM. It has a 5 inch screen lifetime traffic and map updates included. Just have to add the Low Clearance POI and it should be ready to go.

[lostagain]

Garmin 465T, Garmin Nuvi 465T Truck Navigator at The GPS Store