Strap through the hanging hole. Wrap around the arm or pole, pass through the ring, and attach the magic clasp. The black ball has a specific angle, to ensure human temperature does not affect the meter's accuracy. Heat Index (HI) is sometimes referred to as the "apparent Temperature". The HI is a measure of how hot it feels when relative humidity (RH) is added to the actual air temperature.

The Wet Bulb Globe Temp. (WBGT) is a composite temperature used to estimate the effect of temperature, humidity, wind speed and solar radiation on humans. It is used by industrial hygienists, athletes, and the military to determine appropriate exposure levels to high temperatures.

Features:

• Ambient / BlackBall / WBGT Temperature Measuring
• Indoor / Outdoor WBGT Temperature Measuring
• TG - Black-Globe Temperature Measuring
• TA - Air Temperature Measuring
• %RH Humidity Measuring
• °C/°F Switchable Unit
• Heat Stroke Index Indication
• Heat Stroke Index alarm by LED & Sound
• Can hang on the wall or stand on the desk

Application:

• Outdoor Football
• Army Training
• Beach Activities
• School Outdoor Sport
• Hiking on Mountains
• Construction Work
• Mining Site
• Iron & Steel Foundries
• Boiler Rooms

WBGT & Physical Excercise:

WBGT	Flag	Display Indication
<80°F <26.7°C	White	Normal activity. Caution should be taken
80 - 84.9°F / 26.7 - 29.4°C	Green	Discretion is required in planning intense physical activity
85 - 87.9°F / 29.4 - 31°C	Yellow	Intense activity for new and acclematized persons should be curtailed
88 - 89.9°F / 31 - 32.2°C	Red	Intense exercize must be curtailed for those with less then 12 weeks training in hot weather. Be on high alert.
>90°F / >32.2°C	Black	Cancel all outdoor excecise

Heat Stroke Index Indicator

Heat Stroke Index	Warning Display	Display Indication
Below 21.0°C	No	20°C WBGT OUT
21.0 - 24.9°C	Caution	23°C WBGT OUT
25.0 - 27.9°C	Vigilance	26°C WBGT OUT
28.0 - 30.9°	Strict	29°C WBGT OUT
Above 31.0°C	Danger	31°C WBGT OUT

Please Note that Product may differ eg. colour, size from the product Image displayed on website. Kindly check the specifications provided to make better purchase decision. M.R.P Prices and specifications are subject to change without notice.