3-in-1 Multifunction: This portable air quality monitor detects CO2 concentration, temperature and humidity in real time, it cares for your health and can be widely used in home
LCD Backlight Screen: Displays CO2 (current/ maximum/ minimum), temperature (ambient/ dew point/ wet bulb), humidity, date, time, battery level and etc.. LCD digital screen with backlight for easy and clear reading even in dark environments.
3-color Indicator & Alarm Buzzer: Set the low and high alarm value (400-4000PPM limited range)
Data Logging & USB Connection: 5-60s adjustable interval, up to 26 days of continuous recording under the setting of 5s interval. Connect the tester to computer; find the removable disk to view the data clearly.
Removable & Rechargeable Battery: Built-in 750mAh li-ion battery, it can last for about 4 hours when fully charged. Easily open battery cover to replace or remove battery. With USB cable for quick charging via power adapter, power bank, laptop, etc.