Wet Bulb Globe Temperature Index Meter(WBGT-203B)

WBGT index (wet bulb globe temperature index): WBGT refers to the wet bulb globe temperature, which is a fundamental parameter for comprehensively evaluating the heat load on the human body in a working environment, measured in degrees. It is used to assess the average heat load on the human body. It utilizes the natural wet bulb temperature (Tnw) and the globe temperature (Tg), with the addition of the air dry bulb temperature (Ta) in open-air conditions. The WBGT index is calculated as follows:
Indoor or outdoor without solar radiation: WBGT = 0.7 Tnw + 0.3 Tg
Outdoor with solar radiation: WBGT = 0.7 Tnw + 0.2 Tg + 0.1 Ta
Heat stress: Refers to the degree of heat exposure experienced by the human body when working in a hot environment, expressed by the WBGT index. It depends on the heat production from physical labor and the characteristics of heat exchange between the environment and the human body.

Wet Bulb Globe Temperature Index Meter (WBGT-203B) Technical Parameters:

Model: WBGT-203B.
Measurement Items: WBGT, ambient temperature, relative humidity, globe temperature.
Measurement Range: WBGT: 0.0°C-50.0°C (0.1°C), ambient temperature: 0.0°C-50.0°C (0.1°C), relative humidity: 10.0%-90.0%RH (0.1%RH), globe temperature: 0.0°C-60.0°C (0.1°C).
Accuracy: WBGT: ±2°C (15°C-35°C), ambient temperature: ±1°C (15°C-40°C), relative humidity: ±3.0% (30%-90%RH), globe temperature: ±1°C (20°C-60°C).
Power Supply: AA alkaline batteries.
Weight: Approximately 110 grams.