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

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【No Gateway Required】Easily pair the sensor to the eWeLink APP, then control it remotely through Wi-Fi—no additional gateway needed.【Battery Alert】When the battery is low, you will receive a notification on the APP to avoid missing security alarms due to a low battery.【History Log Check】Access up to 3 months of automatically saved record logs directly in the app.【Real-Time Sync & Camera Linkage】Monitor the sensor's real-time status in the app. You can also bind a camera to visually confirm any activity.【Quick & Easy Setup】Install in seconds with the included adhesive—perfect for door frames, window sills, and more.*Note: Batteries are not included in the package. Show more