Newentor CO2 monitor, 4 CO2 concentration levels with alarm and ventilation recommendations, battery operated & USB connection with 3 brightness levels, for schools, office, living room, NDIR, black, 1 pack.

["[VISUAL AND AUDIBLE ALARM] A warning flash of CO2 signs when the set limit is exceeded. In addition, the audible alarm helps us to ventilate the rooms in time. After the display, the respective room is ventilated. You can immediately see whether the ventilation is complete or not.","[CO2 AIR QUALITY MONITOR WITH VENTILATION RECOMMENDATIONS] One must be aware of the dangers of low CO2 levels indoors. Headaches, fatigue, lack of concentration, weak immunity, and oxygen deficiency gradually and chronically affect our bodies. 4 color-coded levels are displayed, helping to monitor the CO2 levels in the air and ventilate if necessary.","[BATTERY AND AC POWER] Despite battery operation, Newentor CO2 alarm works flawlessly. This allows the CO2 monitor to monitor values even indoors although outdoors. In AC power mode, monitor CO2 values every 6 seconds and update, and in battery mode, update CO2 values in real-time with a push. (Low battery warning)","[SENSIRION SCD41 SENSOR]: Highly precise sensor from Switzerland. Measurement range: 400 - 5000ppm, Accuracy: ±40ppm, Response time (τ63%): 60s. Thanks to its high precision and sensitivity, you are no longer affected by value deviations and your health is guaranteed.","[MULTIFUNCTIONAL AIR QUALITY MONITOR CO2]: The carbon dioxide monitor also measures temperature (°C / °F possible) and humidity, and its memory with manual reset allows viewing the Max and Min values for the last 24 hours. But not only as a weather station, but also as an alarm clock. With the integrated alarm function, the CO2 monitor in the bedroom replaces the alarm clock at the same time.","[SUITABLE FOR INDOOR USE] Suitable for kindergarten/schools, caravans/motorhomes, living rooms/bedrooms, offices, candlelit dinners."]