Sonoff DW2 WiFi Door & Window Alarm Sensor

• Keep linkage with SONOFF smart devices to create various smart scene
• Turn on/off your light with an action
• Notify you when the door/window is opened
• Check the opening and closing status of door/window on APP
• Battery-level display and low-battery reminder
• Allow sharing the sensor with your family to monitor and control of your home
• No gateway required
• Bluetooth low energy pairing
• Support to check history record on APP
• Low-power Wi-Fi transmission for more lasting work time
• Peel and stick installation, quick to use

Specifications

• Battery Model: AAA 1.5V
• Working Voltage: DC3V (2 x 1.5V battery)
• Quiescent current: ≤ 40 μA
• Wi-Fi: IEEE 802.11 b 2.4GHZ
• Material: PC V0