SONOFF DW2 Wi-Fi Wireless Door Window Sensor,APP Alert for Home Automation Wireless Alarm Security System, Compatible with IFTTT, No Gateway Required.

【Work without Gateway Connection】No gateway required. The sensor is paired with APP and is controlled on APP via Wi-Fi

【Status Sync, Worry Less】Worry about leaving your door or window open /closed? View instantly the status of home on APP. The sensor will send you a push notification immediately if someone is detected to open your door or window

【Camera Feature】Add SONOFF camera or an unused smartphone, and you can view what’s going on in your home not just receive the alert notification when the door is opened.

【Easy Installation】Install in Any Corner of Your Home. like Sliding door, Window or Hinged door. and Tool-free installation. Adopts 3M adhesive on the bottom of the sensor for easier installation.

【History Records Check】Automatically save message notifications.You can check history records over the last 3 months.