1. SONOFF DW2-RF/ DW2-WiFi doesn’t come with batteries into package
2. SONOFF DW2-RF requires Sonoff RF Bridge to use, DW2-WiFi can direct connect without Bridge
SmartWise DW2 is an enhanced version of Sonoff’s DW1 door/window sensor, and is compatible with Sonoff’s smart home product line. Comes in two parts: one to be fixed on the door / window, the other part to be attached the door/window-frame. When magnetic connection in-between is broken, an alert-signal is sent by the device.
Unlike Sonoff DW1, it can both detect and act as an action trigger in eWeLink for both opening and closing of the door or window. Oppening and closing sends different signals to RF Bridge (or relay switch with RF receiver), therefore two separate actions can be defined for opening and closing. (Such as: opening triggers light on, closing triggers light off.)
Connects to other Sonoff smart devices – e.g. lights, relay switches controlled by the sensor – with wireless, 433.92MHz RF (radio frequency) technology via Sonoff RF Bridge gateway, no need for wiring. Power supply is given by one CR2032 type 12V battery, (not included).
Via eWeLink app you can receive alert on any motion (opening, closing) to iOS/Android smartphone, easy to use as an alarm. When alert function is activated, alert is only sent to owner’s eWeLink account, alert cannot be sent to shared accounts.
Features smart scene function, detected door/windor open can trigger multiple eWeLink compatible Sonoff and SmartWise WiFi devices (smart switches, smart relay swithes and smart sockets) via eWeLink app
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,
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.