Itead Sonoff RF Bridge, Smart Home Wireless Wifi Switch 433Mhz RF Remote Converter to WiFi Remote Control Switch, Diy Switches

Overview
This RF Bridge can convert most of the 433MHz RF Remotes into WiFi wireless. By adding the RF wireless Bridge to iOS/Android App eWeLink WiFi wirelessly, you can add up to four 1-4 buttons 433MHz Wireless RF Remotes to the RF Bridge device. After pairing the RF Remote buttons with RF controlled devices, you can directly control maximum 16 RF controlled devices on the App through WiFi/2/3/4G network.
It can be used for most of the 433MHz RF Remote controlled products, like RF controlled switch, RF controlled socket, RF controlled bulb, RF controlled door opener, etc.
Even more exciting is that it will work with door magnetic sensor, human body IR sensor and more other sensors to realize security alarm, and allowing you to DIY smart scenes. It will support Alexa and Google Home voice control soon.
Note 1:
The receiving supports fixed code 433 frequency, like PT2260, PT2262, PT2264, EV1527, etc.
Not support to learn rolling code and dynamic code like TV and Air Conditional Controller
Note 2:
Timer is not supported in current App versions, but we'll support it soon.
iOS App doesn't support to add this product, but it will be supported in App V2.5.0.
You can't see device status changes in the App.
Curtain switch and alarm are unavailable now, they may come in the near future.
Works With Amazon Alexa
To control Sonoff RF Bridge, you'll need to say RF Remote name and button name together.
Standard voice control commands phrases (if you just say the RF Remote name, Alexa will turn on/off all buttons of that RF Remote immediately):
Alexa, turn on {RF Remote Name}
Alexa, turn off {RF Remote Name}
Alexa, turn on {RF Remote Name} {ButtonName}
Alexa, turn off {RF Remote Name} {ButtonName}