sonoff Home Security Kit (RF Bridge , Door Sensor, Motion sensor) Wireless Sensor Security System

This RF Bridge 433 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 or 433MHz sensors to the RF Bridge device. After pairing the 433Mhz RF Remote buttons with 433Mhz 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 433MHz door magnetic sensor, 433MHz human body IR sensor, and more other 433MHz sensors to realize security alarm, and allowing you to DIY smart scenes. This model supports Amazon Alexa and Google Home voice control. ? PIR2 is a 433MHz RF PIR motion sensor that for human detection. The motion detector can work with the Sonoff RF Bridge 433, providing human detected alarm message push to your phone. ? DW1 is a door and window alarm sensor. The door alarms can work with Sonoff RF Bridge 433. DW1 door alarm sensor detects the opening status and immediately sends alarm notification message to the app.