Features:
* It contains 1 * Sonoff RF Bridge 433 + 1 * Sonoff 433 Mhz PIR2 PIR Sensor + 1 * Sonoff 433 Mhz DW1 Door Sensor.
* App Support: Free i OS & for Android mobile App e We Link.
* Convert 433 M Hz RF Remote controller to App via Wi Fi.
* Make 433 M Hz RF devices App remote controllable.
* Supports adding up to four 433 M Hz RF Remote Controller/ RF Curtain Switch / RF Alarm.
* Supports control up to sixteen 433 M Hz RF devices.
* Remote ON/OFF: Turn connected 433 M Hz RF devices on/off remotely over Wi-Fi or mobile network from anywhere on the App.
* Timing: Supports scheduled/countdown timing tasks to turn on/off 433 M Hz RF controlled devices at specified time.
* The receiving supports fixed code 433 frequency, like PT2260, PT2262, PT2264, EV1527, etc.
* Voice Control: Compatible perfectly with Amazon Alexa & for Google Home.
* Receive alarm push message from 433 M Hz PIR sensor, door window alarm sensor.
*PIR2 Sensor is dual infrared. Double temperature compensation technology.
*PIR2 Sensor is ultra-low power microprocessors. Robust & durable, suitable for homes, offices, sheds, garages etc. Easy installation & set-up, wall-mounted.
*DW1 Door Sensor is ultra-low power less than 1