QUESTemp 46 Heat Stress Meter

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Item #: QT-46
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QUESTemp 46 Heat Stress Meter

Stress Monitor offers high quality heat stress monitoring without the hassle of wet-bulb maintenance. This model measures/calculates the dry bulb, wet bulb, and globe temperatures along with WBGT indoors, WBGT outdoors, relative humidity and Heat Index/Humidex. A real time clock provides accurate reporting with time stamping. On board data logging along with QuestSuite Professional II software allows for advanced analysis of data with charting, graphing and reporting options. In addition, the QUESTemp° 46 includes the ability to measure stay times in order to managework/rest regimens. Guidance is based on the screening criteria for heat stress as defined in theACHIH TLV

Handbook, US Navy PHEL charts, U.S. Marine Flag system and EPRI

ActionLimits. The QUESTemp° 46 also features an optional detachable air probe.


  • Measure/calculate dry bulb, wet bulb & 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, U.S. Navy PHEL charts, U.S. Marine Flag system and EPRI Action Limits
  • Optional detachable air probe


  • (Alkaline Battery) - Standard Accessories, (1 or 3) Sensor Bar Assembly with calculated Wet Bulb using Humidity Sensor, and 2" Style Globe Sensor

Sensor Bar Assembly Options:

  • (1) includes 1 sensor bar containing a Calculated Waterless Web Bulb, Dry Bulb, Globe Temperature & Humidity (%RH) sensors.
  • (3) includes 3 sensor bars, 1 tripod with brackets & rods, and 2- 6 ft. extension cables for mounting sensor bars & monitor for head, torso & ankle measurements.

QUESTemp 46 Heat Stress Meter

Temperature Range -5 to 100°C (23 to 212°F)
Air Velocity Range 0 to 20 m/s
Relative Humidity Range 0 to 100%
Case / Housing Aluminum
Size 9.2" x 7.2" x 3" (23.5 x 18.3 x 7.5 mm)
Weight 2.6 lbs (1.2 kg)
Available Measurements • Celsius and Fahrenheit Scales
• Web Bulb
• Dry Bulb
• Globe
• WBGT Indoor / Outdoor
• Relative Humidity
• Heat Index
• Humidex
• Air Flow
Stay Time / Work Rest Cycles • ACGIH TLV Handbook
• EPRI Action Limits
• U.S. Navy PHEL Charts
• U.S. Marine Flag System
Power Source 9V Disposable Batteries (80 Hrs.),
NiMH Rechargeable Option (160 Hrs.), AC Power Adapter
Inputs RTD Temperature Sensor, Capacitive Polymer Relative
Humidity Sensor, Hot Wire Air Velocity Sensor
Outputs RS232 Serial Computer / Printer Interface, Parallel Printer
Standards / Approvals Electromagnetic Conformance, CE Mark
Datalogging Time History Profile for all Displayed Parameters
Datalogging intervals 1, 2, 5, 10, 30 or 60 minutes
DMS Compatible Yes
QSP II Compatible Yes

QUESTemp 46 Heat Stress Meter

How To Operate the QUESTemp Heat Stress Monitor Video

QUESTemp Heat Stress Monitor Power Options and Rechargeable Battery Installation Video

QUESTemp 46 Heat Stress Meter

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