Test equipment manufacturer, Thermo hygrostat, Universal material testing machine, Abrasion & Impact tester and more
WBGT[℃] Types of warning and required rest Below 21 : Safe (needs occational supply of water) 21 - 25 : Note (Needs immediate supply of water) 25 – 28 : Caution (needs to take rest) 28 – 31 : Warning (Stop active physical exercise) Avove 31 : Dangerous (Cancel physical exercise)