This intelligent CO2 detector can not only detect the CO2 for you but also can display the clock and weather for you after connect with the WiFi you can also check the datas on your mobilephones after connect with the Perthings APP come on and try it it will not let you down Features With three different color CO2 concentration indicator can be set on the app the green means 800ppm the yellow means 800 1500ppm and red means 1500ppm It can not only detect the CO2 for you but also can shows the times and weather for you the time and weather display need to connect with the internet to achieve Using solid electrolyte chemical sensors when the sensors in carbon dioxide gas the two ends of the battery voltage difference calculate the concentration of CO2 gas with less interference the detection is more stable APP remote check After connect with the Perthings APP no matter how far away you are from home you can check the data on your mobilephones It can suitable for office home bedroom living room classroom and so on places Specifications Material ABSNet work Wi Fi 2 4G band Power supplys mode 2 AAA battery not incuded or USB cableSound alarm bu zzerSensors solid electrolyte chemical sensorsMeasurement ranges 400 3000ppmAccuracy 800ppm 6 Working temperature 0 50℃Working humidity 30 80 Item weight 37g 1 3ouncePackage size 115 115 32mm 4 5 4 5 1 3inPackage weight 132g 4 7ounceNotice 1 This product consumes a lot of power Although