Features 1、HIGH RESOLUTION SCREEN: Super clear brightness, can be adjusted automatically. Each indicator has a color indicator below the number, giving you a clear picture of indoor air quality, room temperature and humidity levels 2、REAL TIME MONITORING DISPLAY: Real time display of carbon dioxide concentration per cubic meter, flashing light shows the class of the range 3、SMART WIFI DEVICES: Mobile APP is supported. You can remotely monitor five indicators in the mobile APP. You can also view or export historical data of the last 24 hours and 30 days 4、UPGRADABLE AND OPTIMIZABLE: Intelligent operating system with support for firmware upgrades to achieve new features and optimizations 5、WIDE APPLICABLE: Widely used in agricultural planting, greenhouse planting, production warehouse, material processing laboratory, family and so on Specification ​​Item Type: CO2 Detector Material: ABS Battery: 3.7V lithium battery 1200mAh Application: Widely used in agricultural planting, greenhouse planting, production warehouse, material processing laboratory, family and so on Basic Parameters: CO2 Detection Range: 400~5000PPM CO2 Detection Accuracy: 5PPM TVOC Detection Range: 0~2PPM Temperature Detection Range: 0~50℃ Temperature Detection Accuracy: ±1℃ Humidity Detection Range: 0% to 99%RH Humidity Detection Accuracy: ±2%RH Package List 1 x Carbon Dioxide Detector 1 x USB Data Cable 1 x User Manual