iThe Extech Heatwatch stopwatch not only performs all of the standard ‘stopwatchy’ duties you’d expect, but also has the ability to monitor humidity and temperature at the same time. As someone who has jogged to the store for cigarettes in all sort of different weather, I am familiar with the secret bonuses humidity and temperature can imbue an athlete. Keeping a running tabulation of those measurements would be a big help to someone in serious training.
