Keep linkage with SONOFF smart devices to create various smart sceneTurn on/off your light with an actionNotify you when the door/window is openedCheck the opening and closing status of door/window on APPBattery-level display and low-battery reminderAllow sharing the sensor with your family to monitor and control of your homeNo gateway requiredBluetooth low energy pairingSupport to check history record on APPLow-power Wi-Fi transmission for more lasting work timePeel and stick installation, quick to use—Battery Model: AAA 1.5VWorking Voltage: DC3V (2 x 1.5V battery)Quiescent current: ≤ 40 μAWi-Fi: IEEE 802.11 b 2.4GHZMaterial: PC V0—
