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The black color makes the product look rather reserved
3) Countdown (green backlight)
people can experience headaches
DCF / atomic clock controlled time synchronization
Neat compact alarm clock in beautiful silver color with various functions
Luchtkwaliteit CO2 Meter - Thermometer /Hygrometer - Technoline WL 1030 co2 The black color makes theCO 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
