Sanwa Supply measuring instrument PM2.5 CHE-PM25

---------------------------------------------------------------------- Measures particulate matter that is harmful to the human body in indoor and outdoor environments. Measures and displays the concentration of PM2.5, PM1.0, PM10, HCHO (formaldehyde) and TVOC (total volatile organic compounds). Measures and displays the air environment including temperature and humidity. Displays measurement results of PM2.5 and HCHO (formaldehyde) in numbers, colors (green/safe to red/danger), and icons. Equipped with a backlight display function that makes the display easy to see even in dark places.