Description

Preventing heat illness for anyone working or playing outdoors is becoming more of an issue as athletes and military personal fall ill from heat stroke or collapse from severe heat illnesses. The Kestrel 4400 Series Heat Stress Tracker displays natural wet bulb temperature and black globe temperature, as well as thermal work limit ("TWL"), another recognized composite heat stress prediction tool. For both WBGT and TWL, the Kestrel 4400 Series provides on-screen alarms when environmental conditions enter the caution and danger zones, providing clear and immediate guidance that heat illness prevention steps must be taken.

Human heat stress results from a combination of many environmental factors - air temperature and humidity along with radiant heat from the sun and surfaces, balanced by the cooling effect of breezes or air flow. The Kestrel 4400 Series provides accurate and localized measurements of these environmental factors to let you know at the touch of your fingertips whether or not the conditions are ok to be out in before the possibility of falling ill.

This series is ideal for athletes, military, construction workers, and contractors, really anyone who is outside in the grueling summer heat. Waterproof and built to last in harsh environments, the Kestrel 4400 Series is the perfect tool for virtually any job that requires quick and reliable heat stress data.

If you find yourself outside at night, then the Night Vision option is perfect for you. It features a natural night vision backlight that filters out overall brightness to preserve night vision.

All Kestrel instruments are made in the USA and are backed with a Five-Year Warranty.

Includes

• Protective transport case
• Kestrel Vane Mount
• Batteries (2 AAA)
• Suggested heat stress warning zones chart
• Kestrel certificate of conformity