Extech HT30
Heat Stress WBGT Meter

• 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
• Air Temperature (TA) plus Relative Humidity (RH)
• Selectable units of °F and °C
• In/Out Function displays the WGBT value with or without direct sun exposure
• Auto Power Off with override
• Built-in RS-232 interface with optional Windows®compatible software
• Complete with two AAA batteries