Along with having a Wet Bulb Global Temperature reading, the Kestrel 5400 displays thermal work limit (“TWL”), another recognized composite heat stress prediction tool. For both WBGT and TWL, the Kestrel 5400 provides on-screen alarms when conditions enter the caution and danger zones, providing clear and immediate guidance that heat illness prevention steps must be taken. Clothing levels can also be customized, making the Kestrel 5400 particularly useful in activities requiring heavy protective gear which worsens heat stress. The Kestrel 5400 also displays natural wet bulb temperature, and black globe temperature.
Athlete deaths from heat exposure are on the rise. Warming summers have been accompanied by weekly reports of athletes young and old collapsing from severe heat-induced illness. Our military training units struggle to keep soldiers healthy while preparing them for the grueling heat of Iraq and Afghanistan. OSHA is campaigning to prevent heat illness in outdoor workers and reports that every year thousands of workers become sick working in the heat, and some even die. In every instance, accurate and localized measurement of heat stress conditions is a key component of a heat illness prevention plan. The Kestrel 5400 Heat Stress Tracker, new from NK, answers this need.
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. Anyone who has stood under welcome shade adjacent to a sizzling parking lot understands that these conditions must be evaluated exactly where peoples’ activities are taking place. The most common composite measurement used to determine appropriate exposure to heat stress conditions is Wet Bulb Globe Temperature or “WBGT.” The American College of Sports Medicine, the American Conference of Governmental Industrial Hygienists, and the US Military all have published threshold limit values (TLV’s) or reference guidelines for conditions, activity levels and hydration based on WBGT, clothing levels and acclimatization of participants.
Features
- Wet Bulb Globe Temperature (“WBGT”)
- Thermal Work Limit (“TWL”)
- Waterless! Natural Wet Bulb Temperature accurately calculated from on-board digital sensors with no tedious setup or maintenance.
- Large, hi-res, hi-contrast, graphic display is perfectly readable in the brightest sunlight and is backlit for use in low-light conditions.
- Globe Temperature
- Naturally Aspirated Wet Bulb Temperature
- Wind Speed (Current, Average, & Maximum)
- Altitude
- Pressure trend
- Barometric pressure
- Relative humidity in %
- Heat stress index
- Dewpoint
- Wet bulb temperature
- Density altitude
- Wind chill
- Air, water, and snow temperature °F or °C
- Waterproof
- Time and date
- Easy- to-read backlit display
- Data Logger (automatic and manual)
- Customizable data storage – 2900 data points
- Humidity sensor can be calibrated in the field with our Relative Humidity Calibration Kit.
- Customize screens to display user-selected measurements
- Graph and recall trends
- User-replaceable impeller
- Data charting
- Upload to a computer (with optional interface)
- Meets MIL-STD-810F 516.5 Procedure IV Transit Shock test – 20 drops from 5 ft. IP-67 sealed to exclude dust and water at 3 ft. submersion
- Five languages (English, French, Spanish, German, and Italian)
- US Patent Nos. 5,783,753 and 5,939,645 and 6,257,074
- Made in the USA
- 5 Year Warranty
Ordering Information
89652
kestral-5400-user-guide