Description Bullet Points: 1Carbon Dioxide Detector: Real-time and accurate monitoring of CO2 concentration, environmental humidity and temperature, with a date and clock display, and the data is updated in real time every 4 seconds. 2Independent Semiconductor Sensor: Used to measure CO2, temperature and humidity, full-color large screen, LED digital display, intelligent backlight, soft eye protection, intuitive reading, clearer display, 24-hour real-time monitoring. 3Long Battery Life: Use 3 AA batteries (you need to bring your own) or use the USB data cable TYPE-C interface to supply power, and the battery life can last up to half a month. 4Automatic Alarm System: When the CO2 concentration exceeds 1000PPM, an alarm will be iued to notify you to keep the indoor environment ventilated in time. 5Lightweight Design: Small size, easy to carry, and can be used directly by plugging in the USB cable. Can be placed anywhere: schools, offices, bars and restaurants, homes, cars, etc. Feature: 1.Carbondioxidedetector:adoptsgoodqualitydetectionmodule,withgoodaccuracy,stableperformanceandstronginterferenceprotectiveability. 2.Lowconsumptionandlongservicelife.Accuratelydetectcarbondioxide.Thelargescreendisplayspower,CO2,temperatureandhumidity. 3.Equippedwithalargescreen,differentfontcolorsdisplaydifferentairquality,green,yellow,orange,red. Specification: Productname:IntelligentCarbonDioxideDetector Productmodel:T3 Productmaterial:PC+ABS Detectiontechnology:airconvectiondetectiontechnologyApplicabletemperature:1-50 Displaymode:LEDdigitaldisplay+LCDscreen+backlight Detectionrange:400-5000ppm Productsize:about143mm68mm90mm/5.63*2.68*3.54in Workingvoltage:5V Batterycapacity:3AAbatteries Charginginterface:TYPE-C Displayspecification:about87*53mm/3.43*2.09in Netweight:about159g Groweight:about256g PackingList: AirQualityDetector*1 DataLine*1 Manual*1 ColoredBox*1 Note: Pleaseallowslighttolerancesinsizeduetomanualmeasurement,andlightinginphotographymayresultindifferenceincolorthanitisinreallife.