Laserliner CO2 Detector, Air Quality Meter for Carbon Dioxide, Indoor Monitor with Ventilation Recommendation, Alarm, Temperature and Humidity

Precise CO₂ monitoring: The device measures carbon dioxide concentration from 400 to 9999 ppm with ± 50 ppm accuracy using NDIR sensor technology for reliable indoor air evaluation. Air quality classification: Indoor air is classified according to DIN EN 13779 and displayed with clear symbols, indicating high, average, moderate or poor air quality. Ventilation warning: Visual and acoustic signals alert when CO₂ levels are too high and provide a ventilation recommendation to improve indoor climate. Comprehensive climate data: The display permanently shows temperature from minus 9.9 to 50 degrees Celsius, relative humidity from 0 to 100 percent and current time. User friendly design: The acoustic signal can be switched off and the display dimmed, powered by 5 V adapter in a compact 90 x 91 x 33 mm format., Weight: 0.2866009406 pounds, Manufacturer: Umarex