Feature

●Measurement of CO2 concentration allows you to see when ventilation is time Provides support for infection protection and a comfortable environment
●Sound and color alerts when ventilation 4 color display methods that are easy to understand at a glance, and alerts will notify you when the high concentration is possible
●The carbon dioxide concentration is 4 levels (normal 0 - 800 ppm, Caution: 801 - 1200 ppm, Ventilation Required: 1,201 - 1,500 ppm, Air flow is required and above 1,501 ppm for immediate ventilation)
●Alert button can be turned on/off with one button
●Rechargeable without the need for batteries


Description

[Input Voltage] DC 5V [Usage Time After Charging] 9 hours [CO2 concentration measurement range (approx.) 400 - 5000 ppm [Temperature measurement range (approximate)] -10 - 60 °C [Humidity measurement range (approximate] 5% - 99% RH [Battery capacity] 2000 mAh lithium-ion battery [Charging method] Micro USB] Time [Calibration] Automatic calibration / Manual calibration [Refresh rate (approx.) 2 seconds; Spare time (approx.) 35 seconds; Material: ABS; Monitor: LCD monitor; Dimensions (approx.) 5.4 x 3.1 x 3.4 inches (136 x 78 x 86 mm); Weight: 7.8 oz (220 g).