Kestrel 5400 Fire Weather Weather Meter Pro WBGT with LiNK

KESTREL 5400FW FIRE WEATHER PRO WBGT METER WITH LINK

Models & SKUs:

• Kestrel 5400FW Fire Weather Pro WBGT Heat Stress with Compass and LiNK + Vane Mount: 0854FWLVCORA $1599

*Please Note: Tripods are not included with any 5400 Models.

Find tripods in Accessories.

IMPORTANT: All Kestrel 5400 units are backed by a 5-year warranty. To ensure your warranty remains active, it is essential to keep your meter in a reasonable working condition.

To avoid voiding your warranty, only use lithium batteries with all Kestrel meter models. Alkaline Batteries will void you warranty This is clearly stated in the box of all Kestrel Meters and User Manual

Additionally, consider purchasing a 1060 Pelican case along with the required foam insert to protect your Kestrel 5400 and keep it within warranty requirements. See the links below for Pelican case products designed specifically for the Kestrel 5400.

Pelican Case 1060

https://kestrelmeters.com.au/collections/kestrel-accessories/products/pelican-case-1060

Pelican Case 1060 Foam

https://kestrelmeters.com.au/collections/kestrel-accessories/products/pelican-1060-pick-n-pluck-foam-insert

What's new with the Kestrel 5400FW over the Kestrel 5400:

You'll get all the features and benefits of the lightweight waterless 5400 Heat Stress Meter with a few added benefits for $10 more.  

• PIG Screen (Probability of Ignition) 
• FDFM Screen (Fine Dead Fuel Moisture)

Advantage over the Kestrel 3000 & Kestrel 3500FW models: You won't need to calibrate this meter! NK/Kestrel stand by this and other 5000 series models to hold calibration within drift for 5 years.  

RH (Relative Humidity):  See Chart for more detail.

• Accuracy:  +/- 2%RH
• Sensors:  10 to 90% 25°C non-condensing
• Calibration Drift: Typically less than +/- 0.25% per year!

The Kestrel 5400 Fire Weather Pro WBGT is an all in one heat safety meter and weather station. Lightweight, waterless, and easy to use, the unit offers quick set-up with the included vane mount to become a complete weather station capable of logging weather conditions and critical heat safety information. The Kestrel 5400FW also provides WBGT monitoring for training exercises, helping to prevent personnel injury or fatalities from heat exposure. With the use of LiNK wireless connectivity, the Fire Weather Pro WBGT with LiNK seamlessly sends current and logged weather conditions and heat safety alerts directly to your mobile device, keeping you and your crew informed, prepared and safe.  Works with iPhone/iPad and Android/Tablets.  

Note 2 alarm options set to your own parameters:

1. Flashing LED Light
2. Loud Beeping Alarm

The Kestrel 5400 is revolutionary in size, cost and capability for those in need of measuring Heat Stress.  

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 4400 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.

How Does the Kestrel 5400 Work?

The Kestrel 5400 uses a 1-inch black globe to gather information about the environment, which isn't possible with current Kestrels. As is true with the original Wet Bulb Globe Temperature apparatus, a temperature sensor is installed inside the globe that will measure the temperature inside. The temperature inside the globe is a function of the ambient air temperature, solar insolation and wind speed.

As one can imagine, a sunny day will make the globe hotter because it's painted black, and colder ambient temperatures will have a tendency to cool off the globe. Lastly, the wind will cause the globe to get closer to the ambient air temperature because it will carry heat away from the globe when the air is cooler, or increase heat transfer to the globe if the air is warmer than the globe.

The Kestrel must sit out for a period of time to allow the globe to adjust to true atmospheric conditions; we recommend a minimum of 7-10 minutes. The globe temperature is then taken into account along with other measurements, such as ambient temperature, humidity and pressure, to calculate more meaningful measurements, such as Wet Bulb Globe Temperature and Thermal Work Limit.

Why Use WBGT as a Heat Stress Indicator vs. just using the Heat Index?

Wet bulb globe temperature (WBGT) is based on an equation that uses a combination of environmental elements to calculate the reading. The calculation is a measure of the heat stress in direct sunlight, which takes into account: temperature, humidity, wind speed, sun angle and cloud cover (solar radiation).

Heat index takes into consideration temperature and humidity, and is calculated for shady areas.

There is a difference.

Monitoring the WBGT of the environment is quickly becoming the accepted and preferred method of measuring heat stress. Several sports organizations use WBGT to assess the potential risk of environmental stress on athletes. These organizations include the National Athletic Trainers Association (NATA), National Collegiate Athletic Association (NCAA) and the Women’s Tennis Association (WTA).

Refer to the chart below for a comparison of WBGT and heat stress index.

Roberts WO. Medical management and administration manual for long distance road racing.

In: Brown CH, Gudjonsson B, eds. IAAF Medical Manual for Athletics and Road Racing Competitions:

A Practical Guide. Monaco: International Amateur Athletic Federation Publications; 1998: 39-75.

The Kestrel Meter 5400FW Heat Stress Meter measures/features

• PIG Screen (Probability of Ignition) 
• FDFM Screen (Fine Dead Fuel Moisture)
• 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 %
• 
  
  • Accuracy:  +/- 2%RH
  • Sensors:  10 to 90% 25°C non-condensing
  • Calibration Drift: Typically less than +/- 0.25% per year!
• Heat stress index 
• Dewpoint
• Wet bulb temperature
• Density altitude
• Wind chill
• Air, water, and snow temperature °F or °C
• Waterproof and floats
• 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