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Sonoff DW2 RF Door & Window Alarm Sensor
- Send the alert to your smartphone when the door/window is opened
- Open the door to trigger lights on/off
- Compatible with IFTTT service to set more routines
- Share the sensor to make more users know the status of home
- Can check history records last 3 months
- Low power consumption technology maximize the battery life - up to 2 years
- Easy to install and remove
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