I bought a matched set of this thermometer & also the clock. I mounted one on each side on my 1998 Honda Valkyrie. I like knowing what the temp is for a couple reasons. First, when it gets down to freezing or below, the roads get extra slick which is good to know. Also, I can remember how comfortable I was at what temperature and fine tune my clothing & gear for best comfort. I do like being comfortable while riding. The clock of course is easier to see than a wrist watch is I need to know the time. Both units seem to be very well made, very accurate, and completely weatherproof. No complaints at all.