Color Coded WBGT Heat Stress Meter

This Color Coded WBGT Meter features bright multi-color LCD backlights corresponding to OSHA’s heat stress alert levels. This visual alert system can be seen at a distance allowing management and workers to be instantly aware when the heat index enters potentially dangerous zones. These features, combined with the optional audible alarm help to mitigate the risk of heat related injuries in the workplace. This meter calculates heat stress values for direct sunlight and shade and displays humidity, maximum and minimum ambient (TA) and black globe (TG) temperatures. Also indicates low battery and a hold function.

Government organizations such as OSHA have set recommended heat stress limits for various activities. WBGT (Wet Bulb Globe Temperature) provides the most accurate determination of the heat stress index based on the cumulative effect of air temperature, air movement, relative humidity and radiant heat.

Each unit includes instructions, integrated tripod screw and 4 AAA batteries. NIST traceable certificate of compliance is available for RH and air temperature only.


Range 0 – 50°C, 32 – 122°F
Resolution 0.1
Accuracy ±1°C at 15 – 40°C
±2°C outside this range
Air Temperature
Range 0 – 50°C, 32 – 122°F
Resolution 0.1
Accuracy ±0.6°C
Globe Temperature
Range 0 – 80°C, 32 – 176°F
Resolution 0.1
Accuracy ±1°C, 15 – 40°C
±2°C outside this range
Relative Humidity
Range 0 – 90%
Resolution 0.1
Accuracy ±4%
Size 12″ x 3″ x 1½”
Weight 11 ounces

Ordering Information

For pricing, please call AFC International at 1-800-952-3293, 219-987-6825 or fax 219-987-6826 or email

Catalog No.
WBGT Heat Stress Meter
WBGT Heat Stress Meter, certified 801038C
USB Cable
Field Tripod


Color Coded WBGT Meter Monitor

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