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Reed Instruments

Wet-Bulb Globe Temperature (WBGT) Heat Stress Meter (includes ISO Certificate)

Model: IB909

Mfr. No.: R6200-NIST

  • Wet-Bulb Globe Temperature (WBGT) Heat Stress Meter (includes ISO Certificate) Groupe Belzile Dickner

Colour, sizing or style depicted in some photos may not be exactly as described.
Please check your product description carefully before placing your order.

Sold as: Each

In Stock


Tripod with Instrument Adapter Groupe Belzile Dickner

Reed Instruments

Tripod with Instrument Adapter

  • Maximum Tripod Height: 56"
  • Folded Length: 20"
  • Minimum Adapter Size: 2-15/16"
  • Maximum Adapter Size: 4-17/32"
  • Net Weight: 2.4 lbs.
  • Tripod Thread: 1/4-20
  • Material: Aluminum Alloy
  • Colour: Black

Model: IB820

Mfr. No.: R1500

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In Stock


Carrying Cases, Soft Case Groupe Belzile Dickner

Reed Instruments

Carrying Cases, Soft Case

  • Outside Depth: 2"
  • Outside Length: 9"
  • Outside Width: 4"

Model: HN416

Mfr. No.: CA-05A

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In Stock


Humidity Calibration Standard, 33%  Groupe Belzile Dickner

Reed Instruments

Humidity Calibration Standard, 33% 

Model: IB914

Mfr. No.: R9933

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Humidity Calibration Standard, 75%  Groupe Belzile Dickner

Reed Instruments

Humidity Calibration Standard, 75% 

Model: IB915

Mfr. No.: R9975

Sold as: Each


Humidity Calibration Kit (33% and 75%) Groupe Belzile Dickner

Reed Instruments

Humidity Calibration Kit (33% and 75%)

Model: IB916

Mfr. No.: R9980

Sold as: Each

In Stock

Air Temperature Range

0 to 50°C (32 to 122°F) 

Indoor WBGT Temperature Range

15° - 59°C (59° - 138.2°F) 

Humidity Range

0% - 99.9% RH

Power Supply

4 x AAA Batteries, Optional AC Adapter

Product Certifications

CE, RoHS

Operating Temperature

32 to 122°F (0 to 50°C)

Operating Humidity

<80% (non-condensing)

Outdoor WBGT Temperature Range

15° - 59°C (59° - 138.2°F) 


  • Measures ambient temperature, humidity, wet bulb temperature, black globe temperature, WBGT (wet bulb global temperature), heat stress index, dew point and pressure
  • Heat Stress Index measures how hot it feels when humidity is combined with temperature, air movement and radiant heat
  • Black Globe Temperature (GT) monitors the effects of direct solar radiation on an exposed surface
  • In/Out function displays the WBGT value with or without direct sun exposure
  • Multi-line backlit LCD display simultaneously displays 4 measurements—maximum, minimum, average and data hold functions
  • Internal memory stores up to 99 measurements
  • User selectable unit of measure (°F or °C)
  • User-adjustable WBGT threshold alarm (audible)
  • Tripod mountable for long-term monitoring
  • Low battery indicator and auto shut-off after 15 minutes
  • Includes: R6200 WBGT Heat Stress Meter, NIST Certificate with full Data and Uncertainties and Batteries
  • Items with calibration certificates are non-returnable and non-refundable due to the limited validity of the certification