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【No Gateway Required】Easily pair the sensor to the eWeLink APP, then control it remotely through Wi-Fi—no additional gateway needed.
【Battery Alert】When the battery is low, you will receive a notification on the APP to avoid missing security alarms due to a low battery.
【History Log Check】Access up to 3 months of automatically saved record logs directly in the app.
【Real-Time Sync & Camera Linkage】Monitor the sensor's real-time status in the app. You can also bind a camera to visually confirm any activity.
【Quick & Easy Setup】Install in seconds with the included adhesive—perfect for door frames, window sills, and more.
*Note: Batteries are not included in the package.

Specs & User Manual
SONOFF DW2 Wi-Fi is a wireless door/window sensor that connects directly to the eWeLink App via Wi-Fi, without need for a separate gateway. Once installed, it provides real-time status updates and can be linked to a camera for visual confirmation whenever activity is detected. To ensure continuous protection, it sends low battery alerts and automatically records up to 3 months of activity logs for easy tracking. With quick adhesive installation, it’s perfect for securing doors, windows, and other entry points in your home.
User Manual (PDF)DW2-WiFi
AAA 1.5V
DC3V (2 x 1.5V battery)
≤ 40 μA
IEEE 802.11 b 2.4GHz
PC V0
<15mA
(Android 4.1 & iOS 9.0) or higher
<5mm
-10°C-40°C