Kestrel 4600 Heat Stress Meter

$1,133.20 $1,123.50

Manufacturer: KestrelĀ® Wind and Weather Instruments

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Product Information

The Kestrel 4600 Heat Stress Meter with Compass provides two vital functions in one unit. Determine appropriate exposure to heat stress conditions for occupations with heavy gear requirements, such as HAZMAT response and firefighting, AND utilize wind speed and direction for plume prediction and modeling. This meter also displays thermal work limit (TWL), another recognized composite heat stress prediction tool. Carry less equipment and get more accomplished quickly in emergency situations!

The Kestrel 4600 Heat Stress Meter is the most reliable heat safety meter for emergency response personnel, hazmat crews and others who need accurate, environmental readings in order to properly assess environmental conditions and personnel safety in the field.  The Kestrel 4600 offers protection to those are exposed to extreme conditions by providing real-time monitoring of indoor or outdoor conditions.   

4600 HST (Heat Stress Tactical) are Berry Compliant with Vane Mount MOLLE Carry case.


Difference between Kestrel 4400 & 4600

These meters are very similar in function with 1 major difference worth noting.  

  • The 4600 has a build in digiital compass, the 4400 does NOT.  This has been very useful for Hazmat and military personnel around the world in reporting and analyzing incoming environmental factors.

4600 Measures:

  • Wet Bulb Globe Temperature (WBGT)
  • Built in digital compass
  • Naturally aspirated Wet Bulb Temperature
  • Wind speed
  • Max wind gust
  • Average wind speed
  • Temperature
  • Wind chill
  • Relative humidity
  • Heat stress index
  • Dew point temperature
  • Wet bulb temperature
  • Barometric pressure
  • Altitude
  • Density altitude
  • Pressure trend

Kestrel 4600 Features:

  • Clock & Calendar
  • Easy-to-read backlit display
  • Patented no tools user-friendly impeller
  • Minimum and Maximum values
  • Digital compass
  • User-settable WBGT warning
  • 1" Black globe
  • Temperature-corrected humidity sensor
  • Quick-response external temperature sensor
  • Patented impeller and sensor technology
  • Customizable automatic and manual data logger
  • Data charting
  • Data upload (with optional interface)
  • Five languages (English, French, Spanish, German, and Italian)
  • Flip-top impeller cover allows use of other functions while protecting the impeller
  • US Patent Nos. 5,783,753 and 5,939,645 and 6,257,074

The Kestrel 4600 includes:

  • Protective carry case
  • Kestrel Vane Mount
  • 2 AAA batteries
  • Kestrel Certificate of Conformity
  • 4600 HST (Heat Stress Tactical) are Berry Compliant with Vane Mount MOLLE Carry case.


Product Code: KM-4600HSM

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