• Rugged weather meter for weather enthusiasts, first responders, EMTs and professionals who need accurate environmental measurements with Night Vision back lighting.
• Get all the data you need to know your conditions, shift strategies, reduce risk and ensure safety; Night Vision-Preserving (NV) back light optional.
• Protective overmolded case, replaceable impeller, large backlit LCD, waterproof, drop tested, accurate NIST-Traceable measurements, Night Vision-Preserving (NV) backlight optional.
• 4.8 x 1.9 x 1.1 in., 3.6 oz., includes replaceable CR2032 coin cell battery, lanyard; Made in USA and backed by a 5-year warranty.

The Kestrel family of weather and environmental meters began in 1996 when NK co-owner Richard Kellerman needed a dependable wind meter for flying his glider. Recognized today as the standard for accuracy and reliability by professionals and enthusiasts alike, Kestrel Weather & Environmental Meters can be found at the top of Everest, on Special Forces missions, chasing tornadoes and in your backyard. All Kestrel Weather & Environmental Meters are designed and built in the USA to stand up to years of rugged use, calibrated to NIST-traceable standards and come with a five-year warranty. .com ---- Offering the most functions of any Kestrel Meter in the 3000 series, the Kestrel 3500NV Pocket Weather Meter measures temperature, wind speeds, barometric phenomena, pressure trends of up to 3 hours, and more. In addition to the Kestrel 3500NV's pressure trend indicator, it also has the advantage of altitude and barometric pressure measurement. With these features on hand at any time, the Kestrel 3500NV becomes an ideal weather instrument for outdoor enthusiasts, sportsmen and women, and anyone else that will benefit from accurate and up to the second weather and barometric information. For professionals, this Olive Drab NV version of the Kestrel 3500 features a night-vision preserving backlight. The Kestrel 3500NV's easy to use menu system scrolls through 9 different environmental measurement conditions. It has an external temperature sensor with a waterproof casing that allows you to gauge the temperature of water, snow, and the open air. The sensitive and user-replaceable impeller technology provides accurate wind speed info, and a hard slide-on case, lanyard, and battery are included. It accurately measures: * Wind Chill * Air, Water, and Snow Temperature (displayed in Fahrenheit or Celsius w/ accuracy of +/-1 degree) * Current, Average, and Maximum Wind Speed (displayed in: Beaufort Wind Scale; Knots; MPH; KPH or Feet Per Minute) * Barometric Pressure * Pressure Trend * Altitude * Relative Humidity * Dewpoint Temperature * Wet Bulb Temperature * Heat Stress Index Note that the Kestrel 3500NV provides a complete range of weather measurements, but does not log accumulated data like the more high-tech weather meters of the Kestrel 4000 series. Features: * Protective cover with sure-grip molding * Real-time clock * Data hold function * Large easy-to-read display * Waterproof and floats * Quick-response, external thermistor * Forecast weather with pressure trend indicator * Thermally adjusted humidity sensor * Humidity sensor can be recalibrated in the field in the field with the Kestrel Relative Humidity Calibration Kit. * Innovative design for stability and accuracy in abrupt condition changes * Patented, user-replaceable impeller (no tools needed) * Ultralight impeller is ed in jewel bearings for precision, wide range of speeds and low startup speed * Impeller is shock-ed in a glass-reinforced plastic housing * All instruments and accessories are completely assembled in the USA * Actual size: 4.8 x 1.7 x 0.6 inches (size without case) * Power: User-replaceable CR2032 coin cell battery with average life of 300 hours All Kestrel Pocket Weather Meters are made in the USA and covered by a 5-year warranty against manufacturing defects. Additionally, every single Kestrel manufactured is calibrated for every single value, either directly against NIST-traceable standards or against an intermediary standard that is calibrated daily. What's in the Box? Kestral 3500NV, slip-on protective cover, neck lanyard, CR2032 coin cell battery, Kestrel Certificate of Conformity