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
| Measurement | Range | Accuracy |
| 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.