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. Item Type: Air Quality Monitor Material: ABS Usage: Suitable for agricultural planting, greenhouse planting, production warehouses, material processing experiments, households and other scenarios Applicable APP: For Tuya Detection Gas: CO2 Detection Temperature: 0℃-+50℃ Detection Humidity: 0-85%RH Measurement Technique: Non-Dispersive Infrared Absorption (NDIR) Measuring Range: 400-5000PPM Accuracy Tolerance: ±(50ppm+5%)/±0.3℃/±2% Display Mode: Digital Display Fixing Method: Put it on the table, Wall Hanging Power Supply Mode: USB Power Supply, 18650 Lithium Battery x 1, 3 x AA Battery Power Supply Response Time: <120s Communication Method: 2.4g Wifi Standby Time: About 10 Hours Size: Approx. 100x40mm / 3.94x1.57in Working Temperature: -10℃-+50℃ Storage Temperature: -20℃-+55℃ Fresh Air: Green Light 400-999PPM Good Air: Yellow Light 1000-1999PPM Mild Hypoxia: Orange Light 2000-3999PPM Severe Hypoxia: Red Light 4000-4999PPM Buzzer Prompt: >2000PPM Whether To Support Outdoor Measurement: Support 1 x Air Quality Monitor 1 x Charging Line 1 x Manual