DW2-WI-FI door/window sensor (Open Box Specials)

The SONOFF DW2-Wi-Fi Door/Window Sensor is a smart security gadget that detects the open and closed condition of doors, windows, cabinets, and other entry points. When the sensor detects movement, it sends an instant notification to your smartphone via the eWeLink app, allowing you to monitor your home security from anywhere. The sensor has a two-piece magnetic construction, with the primary transmitter fixed on the door or window and the magnetic strip attached to the frame. When separated, the device senses the opening event and sends notifications or performs smart automated activities. Unlike Zigbee variants, the DW2 connects directly to your 2.4GHz Wi-Fi network, so no hub or gateway is necessary. This makes installation straightforward and appropriate for users seeking a stand-alone smart security solution. The DW2 may also initiate smart scenarios with other SONOFF devices, such as: Activating lights when a door opens. Sending alarm notifications. Triggering smart cameras. Activating automation routines. Additional characteristics include: Real-time open/close status monitoring. Low battery notifications. Event history logging. The eWeLink app allows family sharing. Open Box Special: Previously purchased and returned item. Fully tested and confirmed working. Product functions normally. Packaging may be damaged, opened, or missing.