Description: Notes before purchase Our product is the Chinese version, it need to switch to the Mainland China region to add it in the Aqara Home app. 1. please first check if you have already purchased and connected to use some other Agara devices in the Aqara Home app. 2, Please check which country version of the other Agara devices you have purchased, and check which region you haveselected when you add them to the Agara Home app. 3. If your other Agara devices are non-Chinese versions, then our products and your Agara devices cannot be used in theAgara Home app at the same time. 4. If your other Agara devices are the Chinese version, then they are compatible, so please feel free to buy our product. If you have any other questions, please feel free to contact the store customer service for consultation. Features Product model RTCZCGO12LM Wireless connection Wi-Fi IEEE80211 b/g/n 2.4GHz Bluetooth4.2 Rated input 5V/1A Humidity during operation 0-95% RH, non condensing Temperature during operation -10C~+40C