Air Quality Monitor CO2 Monitor CO2 Detector Carbon Dioxide Detector, Decibel Monitor Sound Noise Meter 30-130dB Range, Applications for Home, Classroom, Office, Factory, Hotel, Restaurant
- CO2 range: 0~9,999ppm display. CO2 Accuracy: ±40ppm or ±3% of reading. Stable and accurate NDIR sensor for CO2 detection. Support ambient fresh air calibration (400ppm CO2)
- Sound decibel measurement range: 30dB~130dB. Frequency response range: 20Hz~12.5kHz. Accuracy: ±0.5dB (94dB@1kHz). Frequency Weighting: A weighting
- Audible and visual alarm for CO2.Two levels of instantaneous alarm
- With temperature and humidity measurement
- Including plastic carry case and power DC5V adapter