QUESTemp QT-32 Portable Heat Stress Monitors

Designed to Quickly and Accurately Evaluate Potential Heat Stress Environments.

Request a Quote
  • Overview
  • Features
  • Specifications
  • Applications
  • Support
  • Video
The rugged, easy to use QUESTemp°™ 32 thermal environment monitor quickly and accurately evaluates the potential for individuals to experience heat stress. It combines WBGT index values with relative humidity measurements to calculate the heat index.
  • Kit includes QUESTemp°™ 32 unit with 2" style globe sensor and standard accessories.
  • 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.
  • Intrinsic safety certification.
For remote applications, the QUESTemp°™ 32 can be tripod mounted with the detachable sensor tethered at a distance up to 200 ft (60 m) from the main unit. The QUESTemp° 32 QT-32 ( with Alkaline Battery) includes Standard Accessories, (1) Sensor Bar Assembly, and 2" Style Globe Sensor.
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 Detection Management Software (DMS) 
Remote sensor capability
Removable sensor array for remote studies up to 200 feet (60.96m)
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
  • Temperature: ± 0.5 C between 0 and 100 C (32 F to 212 F)
  • Relative humidity ± 5%
  Natural Wet Bulb Models Waterless Wet Bulb Models
Measurement Parameters: QT°32 QT°34 QT°36 QT°44 QT°46 QT°48N
Dry Bulb, Wet Bulb and Globe Temperatures, Relative Humidity
Air Velocity     option   option  
WBGT (indoor) Index  
WBGT (outdoor) Index
Heat Index/ HUMIDEX  
Temperature Reading: Celsius or Fahrenheit
Data Logging Intervals: 1, 2, 5, 10, 15, 30 or 60 minutes  
Event Logging Mode          
Display Languages: Choose from Chinese, Czech, English, French, German,
Italian, Japanese, Korean, Norwegian, Polish, Portuguese, Russian, Spanish, Swedish,
and Turkish
Time & Date Stamping with Clock and Calendar  
Displayed Stay Times: ACGIH TLV, U.S. Navy PHEL charts, U.S. Navy/Marine Corp. Ashore Flag Conditions, EPRI Action Limits (QT°48N excludes EPRI)      
Head-Torso-Ankle Weighted Average WBGT (optional with tri-sensors) option option option option option  
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)
Waterless Wet Bulb (Humidity) sensor
Accuracy and Ranges: +/-1.1° C (k=2) between 0° C and 80° C (32° F and 176° 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)
Air Velocity Probe - Omni-directional heated thermistor
Accuracy and Ranges: +/-(0.1 m/s + 4%) from 0 to 20 m/s
    option   option  
Operating Temperature Range:            
Sensor Assembly: -5° C to 100° C (23° F to 212° F)
Electronics: -5° C to 60° C (23° F to 140° F)
Data Management:            
Detection Management Software DMS
Thermal Comfort Indices in Accordance with ISO 7730
Predicted Mean Vote (PMV) and Predicted Percent Dissatisfied (PPD)
    option   option  
Output: RS-232 Serial Printer / Computer Interface; Parallel Printer Interface  
Power Source:            
9V Disposable Batteries; Hours of Battery Life 140 80
NiMH Rechargeable Battery; Hours of Battery Life 300 160
D-ring with Lanyard Attachment. Allows for Hands-Free Monitoring
Tripod Mount / Remote Sensor Bar.
Allows for up to 61 m (~200 ft) Long Distance Measurement
IP54 Water & Dust Ingress Protection Rating
Case Size (including mounted sensor assembly) 23.4 x 18.3 x 7.6 cm (9.2" x 7.2" x 3")
Weight: 1.2 kg (2.6 lb) with Mounted Sensor Assembly
Standards and Approvals: Intrinsic Safety, UL/CSA standards for Class I groups A, B, C & D,
Class II groups E, F & G, Class III temperature code T3 & ATEX
Electromagnetic Conformance: CE Mark


  • Military training facilities
  • Athletic training & events facilities
  • Warehousing & distribution centres
  • Manufacturing plants
  • Nuclear & fossil fuel power generation plants
  • Shipbuilding operations
  • Occupational heat stress management
  • Indoor air quality investigations
  • Thermal comfort monitoring
  • Risk analysis of job function or activity
  • Heat stress control product testing
  • Physical exertion analysis
  • Indoor air quality inspections