Air Quality Monitor CO2 Detector Hygrometer Thermometer for Home Colorful Display Digital Monitor 5

5-in-1: can use as a carbon dioxide concentration detection, thermometer and hygrometer at the same time,etc.Battery supply: built-in 1200mAh lithium battery, use USB charging cable to charge it.Color screen: display the current CO2 data, temperature and humidity data. The colored ring will change according to the CO2 content.Easy to operate: long press the \on-off\ key for 3 seconds to turn on and off. It will detect the CO2 automatically.Compact and portable: can be placed in the kitchen, living room, bedroom, or take it when going out.CO2 Detection Range: 400-6000PPMCO2 Detection Sensitivity: 1PPMTVOC Detection Range: 0-2PPMTemp Measurement Range: 0~60 CelsiusTemp Measurement Accuracy: +\/- 1 CelsiusHumidity Measurement Range: 0%~99%RHHumidity measurement Accuracy: +\/- 2%RHCharging Mode: DC5V 500mA micro-USB interfaceBattery: built-in lithium battery 1200mAh,canstand about6-8 hours with a full chargeScreen: about 2.75inchColour: whiteMaterial: ABS + electronic componentsSize: 90x70x40mmPackage Contents:1 * CO2 Meter1 * USB Charging Cable1 * English ManualOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +\/- 1-3cm.