and High Quality!This product needs to be used with ZigBee 3.0 !Smart air box is the home of intelligent device for remote monitoring of air environment,It can also detect formaldehyde, VOC of poisonous , CO2, temperature, humidity and so on 5 kinds of environmental parameters,In environmental parameters automatically when the graffiti air conditioning, new fan, humidifier, air purifier on household environment optimization.The detection range of the smart air box: formaldehyde, VOC , CO2, temperature, humidityExamination range:Formaldehyde: 0-10.0 (mg/)VOC: 0-99.9 ()Carbon dioxide: 0-1000 ()Temperature: 0-60 ()Humidity: 0-95 (%)After being paired to the APP, it can be linked with products. For example, when detecting excessive formaldehyde/VOC, the smart air purifier is automatically turned on; when the carbon dioxide is exceeded, the smart 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 will be turned on/off automatically; when a certain parameter is detected to the standard, a message will be sent to the alarm (the above smart linkage function needs to be matched with the product)Working temperature: -20--85Working current: 10-496maPower supply mode: USB 5V/1AWorking voltage (rated): 4.8-12VCommunication protocol: ZigBee3.0Size: 90x90x35mmcolor:WhiteMaterial:absPackage Contents:1 x smart air box1 x English manual1 x Card pin1 x USB power supply cableOnly 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.