Technoline Air quality monitor with time

(This text is machine translated) The air quality monitor WL 1040 from Technoline is used to monitor the indoor air quality and has a time display. The monitor is equipped with a non-dispersive infrared gas sensor with a CO² measuring range up to 5,000 ppm. The monitor displays ventilation recommendations based on the level of CO2 in the air. The inside temperature is displayed in °C. The WL 1040 also displays the indoor humidity. The large display can be set between the time (quartz) or the CO2 reading. The monitor has an adjustable high and low limit CO2 reading alarm with optional audible alarm, as well as an adjustable high and low limit humidity alarm. It has a calibration function for CO2 readings and a built-in ROM for saving settings. A backlight with automatic light detection is integrated for better visibility. The air quality monitor can be wall mounted or placed on a table. Ventilation recommendations are displayed using a colored traffic light system in the levels Poor (red), Medium (yellow), ...