Sonoff DW1 Door And Window Alarm Sensor IM17922001

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. You can set totally 8 schedule/countdown/loop timers to turn on/off the RF controlled products.

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. Note that the alarm push only comes in the owner's account, those users being shared can't view the alarm push.

• Note 1: 

The receiving supports fixed code 433 frequency, like PT2260, PT2262, PT2264, EV1527, etc.
The product doesn't support to learn rolling code and dynamic code
You can't see device status changes in the App.

• Note 2:

What's new on Android & iOS 2.5.0 and higher versions?
Scheduled/countdown timers are supported.
iOS App supports to add this product.
433MHz RF curtain switch and RF alarm are supported.