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 WBGT 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
  
  

• Wet Bulb Globe Temperature (WBGT):  32 to 122°F (0 to 50°C) , ±4°F/2°C

• Black Globe Temperature (TG): 32 to 176°F (0 to 80°C),  ±4°F/2°C

• Air Temperature (TA): 32 to 122°ºF (0 to 50ºC) , ±1.8°F/1.0°C

• Humidity: 0 to 100%RH , ±3%RH

• Dimensions
  Meter: 10 x 1.9 x 1.1" (254 x 48.7 x 29.4mm)
  Ball: 1.6" dia, 1.4" high (40mm diameter, 35mm high)

• Weight: 4.8oz (136g)

HT30 Datasheet