Features: 1.Multi Function: The detector adopts an LED digital display, which clearly displays multiple detections of carbon dioxide, temperature and humidity. 2.Automatic Detection: Long press the power button for 3 seconds to turn on or off, and the surrounding environment can be automatically detected after turning on. 3.Phone Monitoring: Support for Tuya APP monitoring, real time display of carbon dioxide concentration value per cubic meter, flashing light to display the level. 4.4 Indicator Light: LED digital display and four indicating status colors, high definition and clear to see, microprocessor, fast response, low power consumption. 5.Wide Usage: CO2 meter is suitable for use in various scenarios such as agricultural planting, greenhouse planting, production warehouses and home. Specification: Item Type: Air Quality Monitor_x000D_ Material: ABS_x000D_ Usage: Suitable for agricultural planting, greenhouse planting, production warehouses, material processing experiments, households and other scenarios_x000D_ Applicable APP: For Tuya_x000D_ Detection Gas: CO2_x000D_ Detection Temperature: 0-+50_x000D_ Detection Humidity: 0-85%RH_x000D_ Measurement Technique: Non-Dispersive Infrared Absorption (NDIR)_x000D_ Measuring Range: 400-5000PPM_x000D_ Accuracy Tolerance: (50ppm+5%)/0.3/2%_x000D_ Display Mode: Digital Display_x000D_ Fixing Method: Put it on the table, Wall Hanging_x000D_ Power Supply Mode: USB Power Supply, 18650 Lithium Battery x 1, 3 x AA Battery Power Supply_x000D_ Response Time: 2000PPM_x000D_ Whether To Support Outdoor Measurement: Support PackageList: 1 x_x000D_ _x000D_ AirQualityMonitor 1 x Charging Line 1 x Manual