1. It is a Sonoff version smart switch that can monitor and set temperature and humidity through the APP eWeLink.2. It supports preset a temperature and humidity range, when the temperature and humidity of the environment fall into the range, it will automatically turn on or turn off connected devices.3. Can work as a Sonoff when without connecting to sensors. But compared to Sonoff, it is more safer, less radiation and in bigger size, easy operation.4. Most importantly, with the support of latest ewelink app, you can create chains of simple conditional statements(Smart Scene). This means you can use it with temperature and humidity sensors to collect temperature data, while the temperature data can be shared to some ITEAD smart home devices (Sonoff, Sonoff RF, Sonoff SV, smart socket) under your account, thus other devices set up a temperature condition to turn on/off connected appliances, this is called Smart Scene.5. This device is perfect to work with electric fan, air conditioner, humidifier, smart fish tank, watering system.
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