Feature: 1. For Tuya Zigbee smart air box can detect the quality of indoor air environment, and has a detection and reference function for formaldehyde, VOC gas, CO2, temperature, and humidity, for TUYA APP show 5 values. 2. For TUYA Zigbee smart air box, can be remotely controlled with a mobile phone, also can achieve smart linkage with other home appliances that support for TUYA in the home. Must be used with for ZigBee 3.0 gateway (not included). 3. Real‑time monitoring, the home environment is under control, and the home environment data can be viewed in real time through the for TUYA smart APP. 4. After the automatic mode is preset for TUYA APP, when the indoor environment is abnormal, a linked alarm can be triggered, and home appliances such as air conditioners, fresh fans, air purifiers, and humidifiers can be turned on to optimize the environment. 5. When excessive formaldehyde/VOC is detected, the smart air purifier will automatically turn on; when the carbon dioxide is exceeded, the smart fresh air fan will automatically turn on. 6. When the temperature is abnormal, the air conditioner temperature is automatically adjusted; when the humidity is too low or too high, the smart humidifier will automatically turn on/off. 7. When it detects that a certain parameter exceeds the standard, a message will be sent to the alarm (the above smart link function needs to be matched with the smart home product). 8. Flexible placement, can be used in different scenarios, real‑time monitoring of environmental conditions, incorporating various decoration styles, and a healthy life starts with a smart air box. Specification: Item Type: Smart Air Box Material: PVC Working Temperature: -20-85℃ Working Voltage (Rated): 5V Working Current: 10-496mA Size: Approx. 90 x 90 x 35mm/3.54 x 3.54 x 1.38in Power Supply Mode: USB 5V / 1A Communication Protocol: for Zigbee Test Range: Formaldehyde: 0-10.0 (Mg/M3) Volatile Organic Compounds: 0-99.9 (Ppm) Carbon Dioxide: 0-1000 (Ppm) Temperature: 0-60℃ Humidity: 0-95 (%). Package List: 1 x Smart Air Box1 x USB Cable1 x Card Pin 1 x Manual