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Or wanna your bed-room light turns off automatically once you walk into the living-room?. Any of your ideas will be reality with SONOFF DW2-Wi-Fi wireless door/window sensor. The sensor will trigger an alarm to your smartphone to remind you of an intruder when the door or window is opened.
Description, If you're looking for an affordable yet reliable way to enhance the security of your home or business premises, consider the SONOFF DW2
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