SONOFF DW2-Wi-Fi – Wireless Door/Window Sensor


【No Gateway Needed】The sensor is paired with App via Bluetooth and is controlled on App via WiFi.
【Low-Battery Reminder & History Records Check】There is a reminder on App about the low battery, and 3-month history records are automatically saved.
【Status Sync & Camera Binding】Check the status of the sensor through App to get the real status. You can also add a camera to view.
【Easy Installation】With Simple peel and stick installation, it is easy to fit in door frames and window sills.
【Note】Batteries are not included in the package.

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Additional information

Weight 38 g
Battery Model

AAA 1.5V

Working Voltage

DC3V (2 x 1.5V battery)

Quiescent current

≤ 40 μA


IEEE 802.11 b 2.4GHZ



Emission current


Operating systems

(Android 4.1 & iOS 9.0) or higher

Installation gap


Working temperature


Customer Reviews

Based on 3 reviews
Very high power cnsumption - two AAA batt in 1,5 month

Very high power cnsumption - two AAA batt in 1,5 month only for from 5 to 10 events.

We are very sorry to bring you a bad shopping experience, please upgrade the firmware to the latest version.If you still have questions, you can send an email to our support:

John Anderson
Inexpensive yet valuable and very high quality

Everything I purchase from Itead is of the highest quality and very dependable, using these contacts with my WiFi can lights to show when my garage door is left open. Works like a charm with IFTTT and I also use the WiFi switches which are the best!

Kevin Mitchell
Excelente. Está funcionando

Gostei, estou usando a minha na porta da entrada de casa e uso ela com a Alexa! RECOMENDO! Fácil de instalar e configurar!

SONOFF DW2-Wi-Fi - Wireless Door/Window Sensor
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