GZAIR Smart Wi-Fi CO2 Meter, Data Logger, Tabletop & Wall Mountable Carbon Dioxide Monitor for Home & School, NDIR…

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3-IN-1 Multi-Function: Measure CO2, Temperature, and Humidity, with high accuracy NDIR sensor, 4-color visual indication for CO2 levels.
Wi-Fi Connection & APP Remote Regulate: Connect by means of 2.4G Wi-Fi to the Tuya Smart App for viewing the monitoring data and the alarm history. No matter where you are, you’ll be able to monitor the indoor air quality of your home.
Real-Time Notification: Sound Warning Alarm at the device when CO2 levels reach or exceed a preset threshold. You’ll also be notified on your Smartphone every time an alarm is triggered.
Auto-Calibration: To verify the accuracy of the CO2 sensor, make sure it’s placed in a ventilated environment for 24 hours before being used for the first time.
Power Supply: Built-in 1400mAh Li-Ion rechargeable battery-powered as much as 8 hours operation. Also powered with USB power or 5V Adaptor.