Portable Carbon Dioxide Detector Multicolor 26.00 x 8.00 x 12.00cm

3.2-inch TFT full color display date, time, CO2, humidity, temperature(℃/℉ switchable).
Also can display test mode, historical trend, alarm value setting, records, setting, calibration, data clear and etc..
Real time CO2 monitoring by the high accuracy sensor, and it will alarm you once the detecting data is exceed the setting value, and you can press "enter" button to open/close the alarm sound.
Backlight brightness adjustable, 25%, 50%, 75% and 100% totally 4 gears for you to adjust.
You can select to close auto shutdown function, or set 15min, 30min, 45min,1h, 2h, 4h, 8h auto shutdown time.