Sonoff DW2 Wifi (no Battery)

The DW2 WIFI door / window sensor is ideal to automate certain results if the door (eg. window) is opened.
Think security, e.g. a siren or lights activating when the front door is opened after 21:00 at night or receiving a message as soon as a door is opened.
Or think comfort, e.g. dimmed lighting illuminating the corridor when opening the bedroom door during the night or foyer lights activating upon your arrival when opening the front door… or TV room lights turning off when closing the door.
The options are endless…
The DW2-WiFi sensor consists of two pieces, i.e. the transmitter fits onto the door or window and the magnetic switch attaches to the frame.
View the status of the sensor in real time on your smartphone via the free eWeLink app.
The sensor requires 2xAAA batteries (sold separately) and the manufacturer indicates that the sensor can last up to 3 months on a door that is opened or closed 3 times per day. However the sensor also includes a battery level indicator and will warn you once the batteries need to be replaced

Features:

• Connects with other SONOFF smart devices to create various smart scenes
• Turn lights on/off automatically when triggered
• Notify you when the door/window is opened
• Monitor door or window status (open or closed) on APP
• Battery-level display and low-battery reminder
• Sharing sensor functionality with family or friends
• No gateway or bridge required
• Bluetooth low energy pairing
• History logs on APP
• Low-power Wi-Fi transmission for better battery life
• Easy installation – Peel and stick

Note: Batteries not included.

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(E&OE)