3M QUESTemp® QT44, QT46, and QT48N Waterless Wet Bulb Heat Stress Monitors

QUESTemp 44 and 46 heat stress monitors simply heat stress management efforts by providing users with real-time guidance on stay times and work/rest regimens with a newly engineered waterless wet bulb sensor. The QUESTemp 48N is specifically engineered for Department of Defense Ashore and Afloat operations, and is built for working environments where daily instrument upkeep is difficult. A high-quality humidity sensor and a proprietary algorithm perform the calculation of WBGT values, eliminating the hassles of daily wet bulb maintenance.

The U.S. Center for Disease Control has produced "Protecting Yourself from Heat Stress" to help you identify the symptoms of heat stress illnesses, and steps you can take to reduce heat stress issues in your workplace.

Key Specifications

  • Waterless wet bulb system
  • Ideal for athletic training facilities, military training, warehousing, occupational heat stress management, and risk analysis investigations
  • Measure and calculate dry bulb, wet bulb, and globe temperature, WBGT indoor/outdoor, relative humidity and heat index/humidex
  • Real-time clock provides accurate reporting with time stamping
  • Stay time measurement per ACGIH TLV Handbook, US Navy PHEL charts, US Marine Flag system, and EPRI action limits (QT46 only)
  • Compatible with 3M software for data storage, retrieval, analysis, reporting and charting

Supporting Documentation

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