TWL-1S Heat Stress Monitor measures air temperature (Ta), relative humidity (%RH), globe bulb temperature (Tg ) and wind speed (WS), whereas wet bulb temperature (Tw ) is derived from Ta, %RH at sea level atmosphere pressure.
 

• 4 essential sensors for thermal comfort measurement
• Built-in WBGT and TWL algorithm
• Intuitive user interface wireless remote notification
• Shipped with tool box and tripod for easy carriage and use
• Scarlet software TWLIT for quick setup and data download