• Uses a capacitance sensor to accurately measure Wet Bulb Globe Temperature (WBGT), Black Globe Temperature (TG), Relative Humidity (%RH), Air Temperature (TA), Wet Bulb (WT) and Dew Point (DEW)
• Heat Stress Index measures how hot it feels when humidity is combined with temperature, air movement, and radiant heat
• Black Globe Temperature (TG) monitors the effects of direct solar radiation on an exposed surface
• In/Out function displays the WBGT value with or without direct sun exposure
• WBGT high/low alarm settings

Extech’s Heat Stress WBGT (Wet Bulb Globe Temperature) Meter accurately determines the Heat Stress level (how hot it feels outside) by factoring a combination of humidity, temperature, air movement, and direct solar radiation. These factors all affect how hot our bodies get, as well as our ability to cool down. It’s perfect for monitoring the Heat Index on hot humid days to prevent heat stroke during road or building construction, outdoor activities, sporting events, or in the workplace.

1. Up Arrow/MAX-MIN button

2. MODE/SET button

3. Power ON-OFF button

4. UNIT/DATA HOLD button

5. LCD Display

6. Temperature & Humidity sensor

7. Black Globe sensor

8. Backlight/MEM button

9. SEL/Alarm button

10. Down arrow/REC button

11. AC Adaptor power jack

Note: Battery compartment on back.