Features: [5 in 1]: Intelligent air quality detector, real-time monitoring of 5 environmental parameters such as HCHO, VOC, carbon dioxide, temperature and humidity, protecting family health at all times.[Multiple Sensor]: Built-in semiconductor air sensor and temperature/humidity sensor, sensitive induction, quick detection of multiple gases, comprehensive coverage, more accurate and reliable. [Work with APP]: Connecting to the Tuya APP via WiFi, real-time display of the detection value, so that indoor air pollution or healthy air index easy to read. You can also preset the alarm value, when the detected value exceeds the preset value, it will automatically alarm. [Voice Control]: Work with Tuya App, the detector support voice control, just say a simple command to operate, convenient and intelligent.[Intelligent Linkage]: It supports intelligent linkage with air conditioners, fresh air fans, humidifiers, air purifiers, etc. through for Tuya APP to automatically optimize the air environment and maintain a healthy living environment for you. [Reliable Quality]: High-quality PVC housing, sturdy and fall-resistant, long service time. With multiple vents, the detector has nice ventilation and is more accurate for detection in air quality. [Wide Application]: Small size, portable and practical, it is very suitable for home, office, school, warehouse, agricultural planting, etc. Support 2 installation methods, you can put it on the desktop or mount it on the wall. Specifications: Working Voltage: 5V, 1A Working Current: 10-496mA Communication Protocol: ZigBee/WiFi(optional) Working Temperature: -20-85℃ HCHO Ranges: 0-10.00mg/m³ VOC Ranges: 0-99.9ppm CO2 Ranges: 350-2000ppm Temperature Ranges: 0-60℃ Humidity Ranges: 0-95% note: English version Please note: Slight color difference or difference in kind, does not affect the use, please do not mi