KESTREL® 4000 POCKET WEATHER™ TRACKER™ WITH RED BACKLIGHT

  The 4000 features a chart mode that allows you to recall and graph up to 250 measurements, along with the date and time of storage. Stores Min/max/avg for all measurements. Screens can be customized to display user-selected measurements. Automatically stores measurements, even when the unit is turned off. Graphs and recalls trends over time. Hard cover protects impeller when not in use (replaceable in the field). Measurements monitored:   • Wind Speed (?3%) (kt, m/s, km/h, mph, ft/m, Bft) M • Barometric Pressure (?3hPa between -10 & +60C) • Temperature (C or F) (?1C) ( -29 to 70C) • Wind Chill (C or F ) (?2C) • Heat Stress (C or F) (?3C) • Dew Point (C or F ) (?3C above 20% RH) • Wet Bulb Temperature • Relative Humidity (?3%) ( 5 to 95%) • Altitude (?30m) (-500 to 9000m) • Density Altitude (?75m) • Includes neck and wrist lanyards, pouch and two AAA batteries • Red Backlight to save night vision • Made in USA • 1 year warranty.