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people can experience headaches
Below are some general CO2 reference levels:
DCF / atomic clock controlled time synchronization
Temperature
always exactly on time and without having to do anything
Luchtkwaliteit CO2 Meter - Thermometer /Hygrometer - Technoline WL 1030 co2 people can experience headachesCO meter WL1030 technoline reliable air quality monitor Description This air quality monitor (CO2 meter) has been tested as very reliable by the German consumer association and recommended as a recommended purchase. High quality non dispersive infrared (NDIR) gas sensor with CO2 measuring range up to 5000 ppm Ventilation advice based on CO2 concentration in the air. In addition, this unit also measures air humidity and temperature. Ideal for public
