Brennenstuhl CO2 Measurer C2M L 4050

CO2 Meter C2M L 4050 for measuring air quality, temperature, and humidity. * Monitoring and measuring CO2 (carbon dioxide) concentration. * With a high-quality NDRI sensor (measurement accuracy +/- 50 ppm). * With traffic light display and alarm signal (visual and acoustic) for quick assessment of air quality in the room. * Can be placed on a table or hung on the wall. * Power supply via provided mains adapter. * Battery operation for up to 12 hours via the built-in battery. * For homes/apartments, schools, universities, offices, hospitals, kindergartens, public establishments, clubs, etc.