PRODUCT DATASHEET HT200 Heat Stress WBGT Meter 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. Features • Uses a capacitance sensor to accurately measure • without direct sun exposure Wet Bulb Globe Temperature (WBGT), Black Globe • • In/Out function displays the WBGT value with or Temperature (TG), Relative Humidity (%RH), Air • WBGT high/low alarm settings Temperature (TA), Wet Bulb (WT) and Dew Point (DEW) • Memory stores up to 50 readings Heat Stress Index measures how hot it feels when • Backlit LCD humidity is combined with temperature, air movement, • Min/Max and Data Hold and radiant heat • Low battery indicator Black Globe Temperature (TG) monitors the effects of • Auto power off with disable direct solar radiation on an exposed surface • Complete with 9V battery and hard carrying case Specifications Ranges Max Resolution Basic Accuracy WBGT - Wet Bulb Globe Temperature (w/o sunlight) 32 to 138°F / 0 to 59°C 0.1° ±1.8°F/1°C WBGT - Wet Bulb Globe Temperature (w/sunlight) 32 to 132°F / 0 to 56°C 0.1° ±2.7°F/1.5°C TG - Black Globe Temperature 32 to 176°F / 0 to 80°C 0.1° ±1.1°F/0.6°C TA - Air Temperature 32 to 122ºF / 0 to 50ºC 0.1° ±1.5°F/0.8°C Relative Humidity 1 to 99%RH 0.1%RH ±3%RH Dew Point -31.5 to 120.1°F / -35.3 to 48.9°C 0.1° Wet Bulb -6.9 to 122°F / -21.6 to 50°C 0.1° Dimensions Weight Meter: 11.8 x 2.8 x 2" (300 x 70 x 50mm) Ball: 2" (50mm) diameter 7.8oz (220g) w/o battery Ordering HT200................ Heat Stress WBGT Meter UPC Code: 793950112007 Specifications subject to change without notice. Copyright © 2014-2015 FLIR Systems, Inc. All rights reserved including the right of reproduction in whole or in part in any form. Rev. 1/6/15 www.extech.com