"The Kestrel 4500 Pocket Weather Station. This thing is amazing! It will tell you just about everything you'd ever need to know about the weather; Wind speed, direction, max gust, average, crosswind, headwind, temperature, dewpoint, humidity, altitude, barometic pressure, heat index, windchill, time, date, and also has a digital compass. Anyone who has a need for weather information or is just a gadget geek should check this thing out." (Avid rock climber/photographer Joe Connolly tracks the weather as he scales cliffs.)