SONOFF DW2 Wi-Fi – Smart Door and Window Sensor

The SONOFF DW2 Wi-Fi sensor lets you monitor the status of your doors and windows in real time, sending instant alerts when they open or close. No gateway or hub is needed; all you need is the eWeLink app and a Wi-Fi network.

Key Features

No Zigbee gateway or Hub needed.
The sensor connects directly to the eWeLink app via Bluetooth for setup, and operates on Wi-Fi for direct control and monitoring without the need for any intermediate devices.

Instant door/window status alerts
The app instantly displays the “open” or “closed” status, giving you peace of mind by keeping track of important entry points in your home or office.

Low battery alert and usage history
Includes a smart in-app alert when the battery level is low, as well as saving a log of events for up to 3 months to easily review opening and closing actions.

Connecting with smart cameras
The sensor can be linked with cameras supported in the eWeLink app, allowing you to check what is actually happening when you receive an open/close alert.

Easy installation without tools
It is installed using double-sided adhesive, making it easy to install on door or window frames without the need for drilling or cables.

Compatible with voice assistants
Supports integration with Amazon Alexa and Google Assistant, allowing you to ask the voice assistant about the status of doors and windows at any time.

Technical specifications

• Connectivity: Wi-Fi 2.4GHz

• Connection method: Bluetooth setup

• App: eWeLink

• Battery: Included in the package

• Composition: 3M adhesive

• Data log: Up to 3 months

• Compatibility: Alexa, Google Assistant, Home Assistant (via eWeLink integration)