Description: and High Quality! This product needs to be used with ZigBee 3.0 gateway! Smart air box is the home of intelligent device for remote monitoring of air environment,It can also detect formaldehyde, VOC of poisonous gas, CO2, temperature, humidity and so on 5 kinds of environmental parameters,In environmental parameters exceed bid automatically when the graffiti smart home air conditioning, fan, humidifier, air purifier on household environment optimization. The detection range of the smart air box: formaldehyde, VOC gas, CO2, temperature, humidity Examination range: Formaldehyde: 0-10.0 (mg/m3) VOC: 0-99.9 (ppm) Carbon dioxide: 0-1000 (ppm) Temperature: 0-60 (℃) Humidity: 0-95 (%) After being paired to the APP, it can be linked with smart . For example, when detecting excessive formaldehyde/VOC, the smart air purifier is automatically turned on; when the carbon dioxide is exceeded, the smart fresh air fan is automatically turned on; when the temperature is abnormal, the air conditioner temperature is automatically adjusted ; When the humidity is too low or too high, the smart humidifier be turned on/off automatically<br><br>when a certain parameter is detected to exceed the standard, a message be sent to the alarm (the above smart linkage function needs to be matched with the smart home product) material: plastic Color as shown Update 1:Visible Air Quality,Air quality level indicator Good air quality shows green light,Severe air pollution shows red light. Update 2:Air pollution exceeing,80 decibels alarm If the air pollution exceeds the standard, an 80-decibel alarm be triggered, and an alarm message be sent to the mobile phone to link other Tuya devices Specifications: Working temperature: -20--85℃ Working voltage (rated): 4.8-12V Working current: 10-496ma Size: 90 x 90 x 35mm Power supply mode: USB 5V/1A Communication protocol: ZigBee3.0<br