Kestrel 5400 Heat Stress Tracker in hand
Kestrel 5400 Heat Stress Tracker
Kestrel 5400 Heat Stress Tracker athletics marathon
Kestrel 5400 Heat Stress Tracker front view
Kestrel 5400 Heat Stress Tracker side view

Kestrel 5400 Heat Stress Tracker

Regular price Sale(excluding VAT @ 20%)

PLEASE NOTE: Orders from EU customers may be liable for import duty/tax. Please refer to our Terms & Conditions.

The Kestrel 5400 is a highly accurate handheld, portable, WBGT (Wet Bulb Globe Temperature) measurement device and environmental data logger.  It requires no distilled water, bulky globes, complicated setup or expensive equipment.  Simply hold or place the Kestrel 5400 at the location required and immediate and average WBGT data will be stored and displayed. You can set thresholds and will be made instantly aware if they are exceeded by a loud buzzer, bright LED beacon and on-screen warnings enabling you to manage dangerous conditions quickly and with accurate information at hand.

Uniquely the Kestrel 5400 is also a complete weather station measuring wind speed, maximum wind gusts, temperature, humidity, pressure, wind chill, density altitude and more, making the Kestrel 5400 the ideal product when determining safe working conditions, setting rest breaks and maximising personnel performance.

The Kestrel 5400 LiNK version can additionally track wind direction making it the ideal tool for HAZMAT response.


  • Globe Temperature
  • Heat Stress Index
  • Naturally Aspirated Wet Bulb Temperature
  • Thermal Work Limit (TWL)
  • Dew Point Temperature
  • Relative Humidity
  • Wind Speed
  • Wind Direction (Pro with LiNK version only)
  • Temperature / Wind Chill (Fahrenheit and Celsius)
  • Station Pressure (Absolute Pressure)
  • Barometric Pressure (inHg and hPa (mb))
  • Altitude (Barometric)
  • Density altitude
  • Wet Bulb Temperature (Psychrometric)
  • Wet Bulb Globe Temperature (WBGT)


  • WBGT (Wet Bulb Globe Temperature)
  • Does not require distilled water
  • Large easily read high resolution, high contrast display with backlight
  • Time & Date
  • Customize screens to display user-selected measurements
  • Graph & recall trends
  • Min, Max & Average values
  • Automatically store measurements, when powered on or off
  • Manually store measurements with the press of a button
  • Customizable data storage - 10,000 data points
  • Data charting
  • Optional LiNK connectivity powered by Bluetooth® low energy provides wireless communication to mobile devices and computers.
  • Data upload to iOS & Android phones & tablets
  • Data upload to Windows or Mac computers with optional USB Data Cable
  • Data upload to Windows & Mac computers via wireless Bluetooth (LiNK Enabled Meters only with the optional Kestrel Dongle)
  • Standard user-replaceable AA Lithium Battery (Average Life 400 Hours)
  • Drop tested to MIL-STD-810G standards (10 drops from 4’)
  • Waterproof and dustproof (sealed to IP67 standards – 30’ submersion to 3’)
  • Certificate of Conformity
  • Neck Lanyard
  • Patented Impeller and Sensor Technology (user-replaceable)
  • Impeller cover allows use of other functions whilst protecting the impeller
  • Waterproof & Floats
  • Languages: English, French, Spanish, German & Italian
  • 5 Year Warranty