• Two patents on its humidity measuring sensors
• Calculates the dewpoint and heat stress index
• Is used by NFL trainers to determine how frequently the athletes need to hydrate, and when the conditions are unhealthy for strenuous exercise

                 Measures

• Current & Average Wind Speed
• Maximum Wind Gust - Wind Chill
• Air - Water - Snow Temperature
• Relative Humidity
• Heat Stress Index
• Dewpoint

                Features Include

• Protective cover with sure-grip overmolding
• Data hold function
• Large easy-to-read display  - Aviation green electroluminescent backlight
• Waterproof and floats
• Humidity sensor can be recalibrated in the field with our Relative Humidity Calibration Kit.
• User-replaceable impeller
• External temperature sensor
• Patented Quick-Response RH Sensor
• All instruments and accessories are completely assembled in the USA
• 5-year warranty
• A slip-on protective cover & Neck lanyard
• CR2032 coin cell battery (Average life 300 hours)
• Kestrel Certificate of Conformity
• Waterproof (IP67 standard)
• Drop-tested (MIL.STD.810F- unit only - Substantial impact may damage replaceable impeller)
• Size 4.8" x 1.7" x .7" -- Weighs 2.3 ounces