Inglés 
Thermometer - Hygrometer Sanwa TH-21
Display the icon of WBGT (heatstroke index) in three stages Red light LED flashes at the time of warning environment Red light LED flashes and beeps at the time of strict warning / dangerous environment. Useful for checking the prevention of heatstroke and seasonal influenza The face mark icon shows the attention value of a flu in two stages Blue light LED flashes at the time of greater care
