QUESTemp° 32

Manufacturer: 3M
Part Number: QT-32
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The rugged, easy to use QUESTemp° 32 Thermal Environment Monitor quickly and accurately evaluates the potential for individuals to experience heat stress. It combines WGBT index values with Relative Humidity measurements to calculate Heat Index. For remote applications the QT°32 can be tripod mounted with the detachable sensor tethered at a distance up to 200 ft (60m) from the main unit.

Key Features:

  • Real-time readings for Wet/Dry Bulb, Globe, WBGT Indoor/Outdoor, Relative Humidity and Heat Index
  • Optional remote sensors for up to 3 simultaneously monitored areas


  • Aluminum


  • 9.2 x 7.2 x 3" (23.5 x 18.3 x 7.5 mm)


  • 2.6 lbs (1.2 kg)

Intrinsic Safety:

  • UL/CSA Standards for Class i, Groups A, B,C & D; Groups E, F & G; Class. Temperature Code T3
  • European Standards for EEX ia IIC, T3

Electromagnetic Conformance

  • CE Mark

Temperature Range

  • -5o to 100o C (23o to 212o F)

Relative Humidity Range

  • 0 to 100%

Available Measurements

  • Celsius and fahrenheit scales
  • Wet bulb
  • Dry bulb
  • Globe
  • WBGT indoor
  • WBGT outdoor
  • Relative humidity
  • Heat index

Power Source

  • 9V disposable batteries (150 Hrs.)
  • NiMH rechargeable option (300 Hrs.)
  • AC power adapter


  • RTD temperature sensor
  • Capacitive polymer relative humidity sensor