Sato SK-170GT Portable WBGT Heat Stress Monitor

When air temperature alone does not tell the whole story, use the SK-170GT to check the surrounding heat conditions. This handheld instrument combines air temperature, humidity and black globe measurements to calculate the Wet Bulb Globe Temperature (WBGT) index. It is a practical tool for checks at construction sites, production areas, farms, schools and sports facilities.

Made for On-Site Checks

  • Four readings: view WBGT, air temperature, globe temperature and relative humidity.
  • Black globe sensor: accounts for radiant heat from sunlight and surrounding surfaces.
  • Indoor and outdoor modes: select the setting that matches the measurement location.
  • WBGT alarm: a buzzer sounds when the reading reaches your set level.
  • Useful display functions: hold a reading and review maximum and minimum values.
  • Portable kit: supplied with a 9 V battery and hard carrying case.

Measurement Specifications

MeasurementRangeAccuracy
WBGT index 0.0 to 50.0°C ±2.0°C
Air temperature 0.0 to 50.0°C ±0.6°C
Globe temperature 0.0 to 80.0°C ±1.2°C from 20.0 to 60.0°C; ±2.0°C elsewhere
Relative humidity 10.0 to 95.0% RH ±3.0% RH from 30.0 to 90.0% RH at 20 to 40°C; ±5.0% RH elsewhere

Instrument Details

Model / catalogue number SK-170GT / 8312-00
Standard JIS B 7922 Class 2 conformity within its specified conditions
Resolution 0.1°C and 0.1% RH
Sampling interval Approximately 2 seconds
WBGT alarm setting 20.0 to 49.9°C in 0.1°C steps; the alarm cannot be disabled
Wind speed input Manually set from 0.1 to 3.0 m/s for calculation; wind speed is not measured by the instrument
Power One 9 V battery
Dimensions 71 × 275 × 30 mm; depth excludes the 60 mm diameter globe
Included SK-170GT monitor, 9 V battery, hard carrying case and instruction manual

Need continuous observation? The rear mounting hole accepts a suitable tripod. Real-time PC transmission requires an optional RS-232C cable. The tripod, cable and radiant heat shield are not included in this listing.

WBGT readings help assess environmental heat conditions as part of a heat management procedure. Select the correct indoor or outdoor mode and enter a wind speed value appropriate to the location.

For application guidance and further details, visit the main SK-170GT product page or read the Sato manufacturer specifications.



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