Reviewed By: A customer from TX, USA on 9/14/12
I bought one of these from a local shop in order to keep track of my mileage on my daily commute. It had been a while since I had set one of these up, but the instructions were clear enough to set up in no time at all. Everything was fine until 3 weeks later when I noticed that my mileage wasn't adding up. I found out later that the unit was shorting out whenever I would hit a bump or rut in the road, which is almost all the time. Not too happy.