1CO2 detector, can store 80,000 sets of data, and carbon dioxide concentration, temperature and humidity can be checked at any time. 2Support data recording, adjustable recording start and end time, and recording interval (hourminutesecond). 3The image trend can more intuitively observe the trend change of carbon dioxide in different periods. 4It can be connected to WiFi and can be monitored online and detected at any time through APP. 5With audiovisual alarm, can set CO2 alarm value. If concentration exceeds set value, the tester will sound and change the brightness. 6Support the measurement of carbon dioxide concentration, temperature, humidity, dew point temperature, wet bulb temperature, time, date, etc. Item Type: Carbon Dioxide TesterMaterial: ABSModel: ST8310ADisplay: 2.8in FPC Screen True ColorCO2 Carbon Dioxide: 0-20000ppmResolution: 1ppmAccuracy:0-10000ppm (50ppm3% of Reading)10000 -20000ppm (200ppm10% of Reading)CO2 Concentration Test Range: 0-2,000%Resolution: 0.001%Accuracy:0-1,000% (0.005%3% of Reading)1,000%-2,000% (0.02%10% of Reading)Temperature /: -20-125, -4-257Resolution: 0.1, 0.1Accuracy: 1, 2Humidity: 0-100%RHResolution: 1%RHAccuracy: 5%Dew Point Temperature: -20-60, -4-140Resolution: 0.1, 0.1Accuracy: 1, 2Wet Bulb Temperature: -5-60, 23-140Resolution: 0.1, 0.1Accuracy: 1, 2Data Record Volume: 80,000 Groups (One page is one group)Language: Chinese/EnglishPower Supply: Built-In 1500mA/H 18650 Rechargeable Battery, DC 3.7V (With protection board)Use Environment:Temperature Range: 0-50Humidity Range: 0-90%RHAir Pressure Conditions: Standard Atmospheric PressureConnect WiFi detection:For IOS phone in the store, search for APP to download and installFor Android phone search in the application market for APP download 1 x Carbon Dioxide Tester1 x Adapter1 x USB Cable1 x Manual