Wet Bulb Globe Heat Stress Meter
Wet Bulb Globe Heat Stress Meter
Wet Bulb Globe Heat Stress Meter

Sper Scientific


Wet Bulb Globe Heat Stress Meter

Regular price $138.00 $0.00 Unit price per

The Wet Bulb Globe Heat Stress Meter is a lightweight meter that's compact enough to carry anywhere.

OSHA and other government organization  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.

Helps avoid heat exhaustion in public health, sports, military and industrial activities. Highly accurate readings with a typical response time of only 15 seconds. Provides settings for both indoor and outdoor activity and includes an audible alarm, adjustable to your WBGT threshold.

One of the many advantages of the WBGT Heat Stress Meter is its ability to stream data directly to a computer to log real-time information. In order to connect this model to a computer to stream data, you will need the USB Cable #840054 and Data Acquisition Software #840052. Comes with tripod screw and has the ability to connect with a computer with the proper accessories.

  • 15 Second Response Time
  • Audible Alarm
  • Adjustable to your WBGT Threshold
  • Indoor/Outdoor Settings
  • Tripod Threads

Globe diameter:1½" (38 mm)
Meter dim: 9¾" × 2" × 1¼" (248 × 51 × 32 mm)
Weight: 4.6 oz (130 g)

Sper Certified *Certification Option
N.I.S.T. traceable Certificate of Compliance available at additional cost (Select option above).

Unit of Measure Range Resolution Accuracy
WBGT 0 to 50ºC
32 to 122ºF
0.1º C/F ±2ºC indoor, 3ºC outdoor
(-15 to 40ºC) otherwise ±2.5ºC indoor,
3.5ºC outdoor
Air Temperature 0 to 50ºC
32 to 122ºF
0.1º C/F ±0.6ºC
Globe Temperature 0 to 80ºC
32 to 176ºF
0.1º C/F ±2ºC (15 to 35 ºC)
Relative Humidity 0 to 100% 0.1% RH ±3%(10 to 90%) otherwise ±5%
5 Year Warranty

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