Luftqualitätsmonitor, Tragbarer Bildschirm Mit LCD-Hintergrundbeleuchtung,Alarm
Sensor: PM2.5 Sensor, Semiconductor Sensor, Electrochemical Sensor. USB Charging: This indoor CO2 monitor adopts USB charging, 24 hours uninterrupted, work plug and play, free from worrying about the trouble of running out of power.