CO2 monitor with built-in carbon dioxide sensor
CO2 monitor - carbon dioxide level sensor.
Although carbon dioxide is invisible and odourless, increased CO2 content in the room leads to fatigue and decreased mental concentration.
No useless data, three coloured LEDs give instant information on CO2 concentration in the air.
Green LED shines - CO2 concentration 0 to 1000 ppm
Yellow LED shines - CO2 concentration 1001 to 1400 ppm
Red LED shines - CO2 concentration 1401 ppm and more