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Heat Stress Monitor

Heat Stress Monitor

Heat Stress Monitor in Case
Heat Stress Monitor Rear Case Open
Heat Stress Monitors Detached

The portable, rugged Romteck Heat Stress Monitor* (HSM) is an essential tool for occupational and environmental health and safety (OEHS) professionals to measure radiant temperature, dry bulb ambient temperature, relative humidity, wind speed, and air pressure parameters that affect heat stress in various conditions from industrial workplaces to underground mines. Heat stress reduces productivity and can lead to accidents, illness and even death. Prolonged exposure to high temperatures can lead to excessive fluid loss, shock or heat stroke. The HSM has applications in the military, foundries, agriculture, offshore drilling operations, food industry, engineering, sports, and industry. Due to its rugged design and anemometer for measuring wind speed, the HSM is well suited for monitoring in underground mines. OEHS professionals find the HSM ideal for confirming the appropriateness of work clothing and personal hydration practices to prevent heat stress. If left for unattended monitoring the HSM should not be placed on the ground due to the effect of radiated heat but mounted on a tripod.

Key Features

  • Measures black globe radiant temperature, dry bulb ambient temperature, relative humidity, wind speed, and air pressure
  • Rugged design stands up to use in underground mines
  • Removable environmental data system
  • Small and lightweight:
    • Weight: 370 g (with batteries)
    • Dimensions:HxWxD: 9.4 x 12 x 3.5 cm (3.7 x 4.7 x 1.4")
  • Automatic internal data logging (can be viewed onscreen or downloaded)
  • Powered by 4 x AA Alkaline batteries
  • Foldaway sensor system
  • Calculates wet bulb temperature based on dry bulb, RH, and wind speed eliminating refilling of thermometer water
  • Large backlit LCD, displays results as:
    • WBGT (ISO 7243 1989) (BS EN 27243/1994)
    • Thermal Work Limit TWL in W/m2
    • Air cooling power in W/m2
    • Min./Max. work cycle times
    • Environmental zone ratings including unrestricted, acclimatised, buffer, and withdrawal

Sensor Specifications

Dry bulb = ±0.2°C from 5-55°C (41 to 131°F)

Globe = ±0.2°C from 5-70°C (41 to 158°F)

RH = ±2% from 0-95% non condensing

Wind speed = ±0.2 m/sec or 10%, whichever is the greater, from 0.1-8.0 m/sec

Pressure = ±1.5 KPA from 40-115 KPA


SKC Limited and our agents are the exclusive distributors for Romteck HSM in the UK and Europe.

*Not yet CE Marked - For further information and updates This email address is being protected from spambots. You need JavaScript enabled to view it. or call 01258 480188


Heat Stress Manual Manual

Click to View



Heat Stress Monitor

Description Part Number
Romteck Heat Stress Monitor Kit includes:

monitor, sensor module, 4 x AA alkaline batteries, serial data download cable, CD with manual and download utility software, small tripod, tripod mounting plate, yellow waterproof hard case




Description Part Number
Replacement Waterproof Hard Case, Dimensions: 20.6 x 16.7 x 9 cm (8.1 x 6.6 x 3.5") 905-C
Replacement Manual and Data Download Utility Software CD 905-CD
Replacement Combined DC Plug and Download Cable, to conserve battery use during downloading
(adaptor required for countries other than Australia)
Replacement Sensor Module 905-S
Replacement Serial RS-232 Download Cable (2 m length) 905-SC
Replacement Serial to USB Adaptor 905-SU
Large Tripod (min./max. height: 42/130.5 cm) 905-TL
Replacement Tripod Mounting Plate (fits any tripod with ¼BSW Thread) 905-TMP
Replacement Small Tripod (min./max. height: 12.5/21 cm) 905-TS


Heat Stress Monitor Case


Heat Stress Monitor Download Cable


Heat Stress Monitor Large Tripod


Heat Stress Monitor Small Tripod