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TT-563 Tanita WBGT (Wet Bulb Globe Temperature) Heat Index Meter


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New From Tanita! WBGT Heat Index Meter

Ideal for use in a variety of environments:

  • More realistic than Heat Index used by National Weather Service
  • Evaluate safe levels of physical exertion when outdoors
  • Measures temperature, humidity, and solar radiation
  • Built-in alarm funtion to alert of threatening conditions
  • Portable design, easy to carry, includes mounting accessories


The heat index used by the U.S. National Weather Service is a measure of perceived heat using air temperature and relative humidity, but it does not account for the effects of solar radiation. When working or exercising in direct sunlight, the effect on the human body can be much more significant. The Wet Bulb Globe Temperature (WBGT) is a measure of heat stress in direct sunlight, which takes into account: temperature, humidity, wind speed, sun angle and cloud cover (solar radiation). Military agencies, OSHA and many nations use the WBGT as a guide to managing workload in direct sunlight.

Tanita’s new TT-563 WBGT is a convenient and easy to use monitor that allows you to determine the safe levels of physical exertion when working or exercising outdoors. Simply place the TT-563 in direct sunlight, results are displayed within seconds. Monitoring temperature, humidity and solar radiation is important, as they can be contributing factors to heat exhaustion and heat stroke.

The reference threshold value is listed in the website below. Refer to TABLE III:4-2. PERMISSIBLE HEAT EXPOSURE THRESHOLD LIMIT VALUE

  • WBGT: Wet Bulb Globe Temperature
  • Ta: Air Temperature
  • Tg: Globe Temperature
  • Td: Dew Point Temperature
  • RH: Relative Humidity
  • AH: Absolute Humidity
  • Available for outdoor and indoor use: Considering sunlight and radiant heat
  • Accurate calculation for WGBT, which is the index for heat stroke
  • Alarm function: Set the threshold value manually
  • Small size and includes: Carabiner, Hanging attachment, and tripod attachment

Air temperature range: 32 F to 122 F (0 C to 50 C)
WBGT range: 32 F to 122 F (0 C to 50 C)
Globe temperature range: 32 F to 140 F (0 C to 60 C)
Relative humidity range: 20% to 90%
Dew point temperature range: -0.4 F to 118.4 F (-18 C to 48 C)
Power Supply: 1 x CR2032 (included)
Dimensions: 1.4 in x 2.3 in x 4.3 in
Weight: 2.3 oz

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