Rugged and reliable, the Kestrel 3500NV Weather Meter boasts multiple weather-monitoring functions in one compact device. It measures wind speed (current, average and maximum gust), temperature (air, water and snow), barometric pressure, pressure trends of up to three hours, wind chill, altitude, relative humidity, heat-stress index and dewpoint. Its protective cover with sure-grip overmolding is completely waterproof and floats in water, allowing you to keep an eye on the weather in the harshest of conditions. Also features a real-time clock, data hold function and user-replaceable impeller. Large, easy-to-read display with nightvision-preserving backlight. Includes CR-2032 battery, lanyard and hard slip-on case. Made in USA. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Weather Meters.