Description [6 in 1]: Intelligent air quality detector, real-time monitoring of 6 environmental parameters such as PM2.5, formaldehyde, TVOC, carbon dioxide, temperature and humidity, to protect family health at all times. [Multiple Sensor]: Built-in semiconductor air sensor, PM2.5 infrared 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 automatically alarm. [Intelligent Linkage]: It supports intelligent linkage with air conditioners, fresh air fans, humidifiers, air purifiers, etc. through Tuya APP to automatically optimize the air environment and maintain a healthy living environment . [Reliable Quality]: High-quality housing, sturdy and fall-, 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 . Working Voltage: 5V, 1A Working Current: 10-496mA Communication Protocol: WIFI 2.4GHz Working Temperature: -20-85 Formaldehyde Range: 0-10.00mg/m3 VOC Range: 0-99.9ppm CO2 Range: 0-1000ppm Temperature Range: 0-60 Humidity Range: 0-95% PM2.5 Range: 0-1000ug/m3 size:10x10x4cm Material:plastic colour:White Package Contents: 2 * Air Quality Monitor Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.