I just saw in the new Brookstone ad in the paper that they are selling an external temp gauge for vehicles. It mounts on the dash or wherever you want to put it and the sensor goes to your bumper. cost is $25. That is a great deal for that item. Seen a few but this one looks to be the ticket for what we want in terms of outside temp. gonna check it out today at the mall. Will get back to you with feed back.