SONOFF DW2-RF – 433MHz RF Wireless Door/Window Sensor


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【Alert Notification & Camera Binding】By receiving a push notification, monitor your home more reassuringly. You can also add a camera to check the real-time status.
【Smart Scenes】Open the door to trigger lights on/off. There are more scenes that you can customize.
【Low Power Consumption】Adopots low energy consumption technology to extend the lifespan of batteries.
【Easy Installation】Tool-free installation with the 3M adhesive at back,
【Note】Batteries are not included in the package. RF433MHz Bridge is required.

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Customer Service Guarantee

SONOFF DW2 RF Wireless Door Window Sensor App Notification Alerts For Smart Home Security Alarm Works With SONOFF RF Bridge

Note: In order to achieve the DW2-RF using, the SONOFF Bridge is required.If you have any questions, please consult our customer service.

Doors and windows as the entrances and exits are the weakest points of your home. An unsecured door or window is like an obvious “WELCOME” sign, to a burglar, so door/window sensors are also known as “entry sensor”. As one of the most popular home security devices, DW2-RF wireless door/window sensor is enough smart to get you to know whether your door or window is open, and it can not only send you alert notifications, but also make you know when the entrance point is opened, making sure your home is safe.

More importantly, the sensor allows you to add a security camera or old smartphone to view who is entering your home, providing you with more details and notes about the uninvited guest. Can sync the opening status of door/window to app which gives you a peace of mind when you’re not at home. History records check can be traced back to the last 3 months and this can help you look back and check the condition of your home at that time. Lights are triggered in the action. You can set the linkage in the smart scene of the eWeLink app to connect the sensor and your light so that you can open the door to trigger the hallway light on and off. The SONOFF Bridge is required for making this linkage possible.This “device sharing” feature is for letting more of your family know your home is secure. After sharing the sensor, all of the shared users will receive the alert about the condition when someone opens the door. The sensor is 3M adhesive installed, easy to move and remove. It can work just fine upside down and sideways, as long as the magnet is less than 5mm from the sensor, which makes no difference how the sensor is located. It’s battery operated and has a low power consumption that ensures the battery life can last up 2 years.



Additional information

Weight 36 g
Dimensions 72 × 48 × 22.5 mm
Working Voltage

DC 3V (2×1.5V AAA battery)



Emission current

≤ 20 mA

Quiescent current

≤ 1.5 uA

Wireless Transmission distance

Max. 50m



Customer Reviews

Based on 8 reviews
Nicola Lamonaca
Tutto ok

Ottimo commerciante sicuro senza alcun problema.

Pairing was easy and fast.

Works great, pairing was easy and fast.

Robert & Kellie Bindel

Installed on a garage door and was able to write scenes allowing this to turn on garage lights.Truly awesome sensor and well worth the cost. Can also be set up in a closet to turn lights on when the door opens, etc. I really recommend it.

David Schneider

These sensors are inexpensive and I've heard the batteries last a long time.
However, they are highly unreliable. At least 10%, and perhaps as much as 25% of the time, the Sonoff bridge does not receive the signal from the sensor. The sensors are less than 20 feet from the bridge, open air.
That level of failure is unacceptable for a home automation system and especially for a security system.
As stated in other reviews, there is only a door open signal; no signal when door is closed or when battery gets low.
Though more expensive, I'm looking at the YoLink door sensors & bridge.

We've contacted you again through email and provided you with another solution to your problem; please check your email and confirm the remedy to see if it works, and thank you once again.

Roelf Hummel

Not installed yet

Nevera más inteligente

Excelente servicio, me llegó muy rápido a Colombia. Excelente este nuevo producto Sonoff. Este suiche ahora me avisa cuando la mini puerta de la nevera queda abierta. Los invito a comprarlo y a implementar esta gran idea.

Terry Davis
Only detects open

It’s useless that it only detects open, not close.

This is because the RF protocol is a one-way protocol, so there is a notification only when it is opened
If you want two-way notification, we recommend DW2-WIFI or SNZB-04 sensor.

Hemi Mehan
Works perfectly

Used to detect the status of doors and windows.All Super run… goods as described.

SONOFF DW2-RF - 433MHz RF Wireless Door/Window Sensor