SONOFF DW2 Wifi Wireless Door Window Sensor Smart Home Security

Model Number : DW2 wifi Brand Name : SONOFF Origin : Mainland China Certification : CE Smart home platform : Other Battery Model : AAA 1.5V Working Voltage : DC3V (2 x 1.5V battery) Quiescent current : 40 A Wi-Fi : IEEE 802.11 b 2.4GHZ Material : PC V0 No Gateway Needed The sensor is paired with App via Bluetooth and is controlled on App via WiFi. Low-Battery Reminder amp; History Records Check There is a reminder on App about the low battery, and 3-month history records are automatically saved. Status Sync amp; Camera Binding Check the status of the sensor through App to get the real status. You can also add a camera to view. Easy Installation With Simple peel and stick installation, it is easy to fit in door frames and window sills NoteBatteries included in the package.