Compact CO2 monitor with alarm for many applications in air quality monitoring, greenhouses, energy management and for research and teaching.The measurement takes place with a high-quality optical NDIR measuring procedure at the air openings on the top of the device.Simultaneous display of the time-weighted average over ?8 hours (TWA) or 15 minutes (STEL).The G 1910 is the ideal measuring and warning device for moderate but harmless concentrations â but does not replace personal protective equipment for use in potentially dangerous atmospheres.IMPORTANT!Never enter areas where the concentration may exceed 3% or 30000 ppm CO2 without additional protective measures!Comfortable monitoring of the CO2 load for professions exposed to increased stress: CO2 dosimeter over 8 hour average TWA. Very mobile thanks to belt clip and strap and 24h battery life! Air hygiene monitoring with two adjustable alarm thresholds, the first one can be used as a ventilation alarm â in the event of an alarm, the device beeps and flashes. For a shock ventilation, the beep can be suppressed for 5 minutes by pressing a button. Continuous operation possible with USB cable.Traceable reference device for checking the usability and function of CO2 monitors This text is machine translated.