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QUESTemp° 34 Datalogging Thermal Environment Monitor

Orderable Items The QUESTemp° 34 datalogging thermal environmental monitor from Quest combines WGBT index values with relative humidity measurements to calculate heat index. The QUESTemp° 34 provides real-time readings for dry bulb, wet bulb, globe, indoor and outdoor WBGT index, relative humidity, and heat index. Use in connection with optional Data Management Software (DMS) for storage, retrieval, analysis, and reporting and charting heat stress monitoring data.


  • On-board humidity sensor
    • Displays relative humidity and calculates the Heat Index or Humidex as reported by the National Weather Service

  • Rugged construction and CE approved
    • Case provides resistance to light rain or mist, RFI, and static electricity

  • Supported by optional Detection Management Software (DMS)

  • Remote sensor capability
    • Removable sensor array for remote studies up to 200 feet

  • Long battery life
    • 9-volt alkaline battery model provides up to 150 hours of use

  • Compact and lightweight
    • 9.2 x 7.2 x 3 inches (23.4 x 18.3 x 7.6 cm) including sensor array
    • 2.6 lbs (1.2 kg) with sensor array mounted

  • Easy-to-use keypad

  • Measuring parameters
    • Globe
    • Drybulb
    • Wetbulb
    • WBGT in, out, and weighted average with 3 sensor sets
    • Relative humidity
    • Heat index or Humidex

  • Sensors and Accuracy
    • Dry bulb sensor - 1000 Ohm platinum RTD
      Accuracy and ranges: +/-0.5 from 0° C to 120° C (+/-0.9° F from 32° F to 248° F)
    • Wet bulb sensor - 1000 Ohm platinum RTD
      Accuracy and ranges: +/-0.5 from 0° C to 120° C (+/-0.9° F from 32° F to 248° F)
    • Globe sensor - 1000 Ohm platinum RTD
      Accuracy and ranges: +/-0.5 from 0° C to 120° C (+/-0.9° F from 32° F to 248° F)
    • Relative humidity sensor
      Accuracy and ranges: +/-5% from 20 to 95% (non-condensing)





The QUESTemp° 34 datalogging area thermal environment monitor is rugged and easy-to-use, providing quick and accurate WBGT measurements for assessing environmental heat stress. With its on-board humidity sensor, the QUESTemp° 34 displays relative humidity and calculates the Heat Index or Humidex. Features include a covered wet bulb reservoir, shielded dry bulb, removable sensors for remote applications, set-up options for temperature display and language, and user-selectable logging intervals. QUESTemp° 34 is available with three different power options to meet your monitoring applications: AC, alkaline, or rechargeable NiMH batteries.

Detection Management Software
Detection Management Software (DMS) makes it easy to retrieve, manipulate, report, share, and store data collected by Quest datalogging instruments for noise dosimetry, sound measurements, heat stress assessment, indoor air quality evaluation, and environmental monitoring. Advanced DMS Software is similar in functionality to QuestSuite Pro II Software but includes many new features:

  • Quick, easy navigation
  • Data sorting into sessions/studies
  • Fast report generation
  • Click, drag, and drop report/graph customization
  • Support for Acrobat PDF
  • Advanced reporting and analysis

Contact your SKC representative for assistance with selecting the models and accessories for your specific applications.