SONOFF DW2 Wi-Fi Wireless Door Window Sensor, APP Alert for Home Security & Automation, No Gateway Required, Compatible with IFTTT, for Sliding Door/Window/Hinged Door

Key features

• No Gateway Needed, Plug & Play: No gateway required—pair directly with your phone APP via Wi-Fi (2.4GHz only, not compatible with 5GHz Wi-Fi). Set up in 5 minutes, no complex wiring, perfect for renters or anyone who hates tedious installation.
• Real-Time Status Sync & Instant Alerts: Worried about forgetting to close doors/windows when leaving home? Check the open/closed status of your doors/windows instantly on the APP, no matter where you are. The sensor sends a push notification to your phone within 1 second when someone opens your door/window unexpectedly, keeping your home safe from intruders.
• Visual Monitoring with Camera Integration: Add a SONOFF camera or an unused smartphone (no built-in camera) to the system—when the door/window is opened, you won’t just get an alert: you can view real-time footage directly on the APP to see who’s entering your home, eliminating blind spots in home security.
• Tool-Free Installation, Fit Any Corner: Install easily in any corner of your home: sliding doors, windows, hinged doors, or even cabinets. Uses strong 3M adhesive (included) on the sensor base—peel and stick, no drilling or tools needed. Adhesive works best on smooth, dry surfaces; not recommended for rough or wet walls.
• 3-Month History Records, Traceable Security: Automatically saves all alert notifications and door/window status changes, allowing you to check history records over the last 3 months. Perfect for tracking when family members arrive home, or verifying if doors/windows were left open accidentally.