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Quest Temp 34 Area Heat Stress Monitor Quest Technologies Get Quote



The QUESTemp° 34 area heat stress monitor struts its stuff with its ability to protect groups of workers with a single instrument. The dry bulb sensor measures ambient temperature. The wet bulb sensor takes into account evaporative cooling, giving an indication of the effects of humidity on an individual. And the globe sensor provides an indication of radiant heat exposure due either to direct light or hot objects in an environment. The QUESTemp° 34 environmental monitor converts all these measurements to a simple, single-number indoor and outdoor WBGT index that can used in conjunction with guidelines from ACGIH, the U.S. Navy, EPRI, ISO and other standards-setting organizations. Use the QUESTempº 34 area heat stress monitor with any of these guidelines to determine appropriate work and rest regiments or stay times for workers in situations where heat stress is a life safety issue and a liability risk. While the QUESTempº 34 will print a report without the need for special software, Quest Suite software, an optional rental item, facilitates custom reports and graphs.

Key Features

  • NIST traceable calibration.
  • Instrinsically safe.

Technical Specifications

Measurements Globe, dry bulb, wet bulb, WBGTin, WBGTout, WBGT weighted average (if 3 sensor sets), relative humidity, and Heat Index / Humidex. Temperatu
Data Logging Records and prints all measurements at user selected interval of 1, 2, 5, 10, 15, 30, or 60 minutes. 128K bytes of data memory.
Languages English, French, Spanish, Italian, German
Housing Designed water resistant to a light rain or mist. If rain is frequent, best practice would be to remote the sensor bar and keep the instrume
Size Height 9.2in (23.5cm); Width 7.2in (18.3mm); Depth 3.0in (7.5mm). Dimensions include mounted sensor assembly
Weight 2.6 lbs. (1.2 kg) with mounted sensor assembly
Sensor Types Temperature: 1000 ohm platinum RTD. Humidity: Integrated circuit with capacitive polymer sensor
Accuracy Temperature: +/-0.5°C between 0°C and 100°C Relative Humidity: +/-5%
Operating Temperature Range Sensor Assembly: -5°C to +100°C Electronics: -5°C to 60°C
Operating Relative Humidity Range 0 to 100% (extended exposure to humidity > 90% can cause a reversible shift of 3%)
Remote Sensor Bars 2 x 15pin D-sub jacks are located on the side of the unit for plugging in 1 or 2 additional sensor bars by using remote cables up to 200 fee
Power Options 9V alkaline, 7.2V NiMH rechargeable pack (charged in the unit), or AC adapter wall power cube (AC adaptor will operate the unit or recharge
Battery Life 9V alkaline: 140 hours. Rechargeable Nickel Metal Hydride: 300 hours. (Adding additional sensor bars to the QUESTemp°34 reduces battery life
Safety Approvals ETL, cETL: Class I,II,III Groups A,B,C,D,E,F,G, Temperature code T3 DEMKO: EEX ia IIC, T3 CE mark


  US Metric
Dimensions 9.2 x 7.2 \" x 3\" 233 x 182 x 76 mm


  US Metric
Weight 2.6 lbs 1.2 kg