SONOFF DW2 Wi-Fi Wireless Door/Window Sensor – DW2-Wi-Fi | Wi-Fi Magnetic Contact Sensor, Open/Close Detection, eWeLink App Alerts, No Gateway Required.
Overview:
• SONOFF DW2-Wi-Fi is a wireless Wi-Fi door/window sensor designed to detect the open and close status of doors, windows, cabinets, drawers, and other access points.
• The sensor works through a magnetic contact system between the main sensor and the magnet, then sends the door/window status directly to the eWeLink App.
• Unlike Zigbee sensors, DW2-Wi-Fi does not require a Zigbee gateway, because it connects directly to the Wi-Fi network using 2.4GHz Wi-Fi.
• It supports mobile app notifications, status checking, and smart scene automation, such as turning on lights when a door opens or triggering an alarm scene when movement is detected.
• It is suitable for homes, apartments, offices, storage rooms, cabinets, and small smart security applications where direct Wi-Fi connection is preferred.
Key Features:
• Wi-Fi door/window sensor for open and close detection.
• No gateway required, connects directly to Wi-Fi.
• eWeLink App monitoring for door/window status.
• App notification alerts when the door or window is opened or closed.
• Supports smart scenes with compatible SONOFF / eWeLink devices.
• Can trigger actions such as turning lights on, activating alarms, or sending alerts.
• 2.4GHz Wi-Fi connection using IEEE 802.11 b.
• Battery-powered wireless design using 2 × AAA batteries.
• Low power consumption with standby current ≤40μA.
• Adhesive mounting for fast installation without wiring.
• Suitable for doors, windows, cabinets, drawers, storage rooms, and access monitoring.
Technical Specifications:
• Brand: SONOFF.
• Model Name: DW2-Wi-Fi.
• Product Type: Wi-Fi Door / Window Sensor.
• Sensor Type: Magnetic contact sensor.
• Wireless Protocol: Wi-Fi IEEE 802.11 b 2.4GHz.
• Detection Status: Open / Close.
• Working Voltage: DC 3V.
• Battery Type: 2 × AAA 1.5V batteries.
• Quiescent Current: ≤40μA.
• Emission Current: ≤15mA.
• Installation Gap: Less than 5mm between sensor and magnet.
• Smart App: eWeLink App.
• Operating System: Android 4.1 / iOS 9.0 or higher.
• Material: PC V0.
• Main Sensor Dimensions: 70 × 31 × 19 mm.
• Magnet Dimensions: 42 × 14 × 16 mm.
• Working Temperature: -10°C to 40°C.
• Gateway Requirement: No gateway required.
• Installation Type: Adhesive mounting.
• Application: Door, window, cabinet, drawer, access point, smart security, lighting automation.
Applications:
• Door and window open/close monitoring.
• Smart home security alerts.
• Cabinet and drawer monitoring.
• Lighting automation when opening doors.
• Apartment and small office security.
• Storage room access monitoring.
• eWeLink smart scene automation.
• Wi-Fi smart home projects without Zigbee gateway.
Connect Gates Recommendation:
• Recommended for projects that need a simple Wi-Fi door/window sensor with direct app connection and no Zigbee gateway requirement. For larger smart home systems, better battery performance, and stronger automation stability, Connect Gates recommends using SONOFF SNZB-04P Zigbee Door/Window Sensor with a compatible Zigbee gateway.