Features:

• History record o door/window event.

• Can use on doors, windows, safes and etc.

• Works with Siri: ask for the current open/closed state.

• Truly wireless: powered by a long-lasting, replaceable battery.

• HomeKit-enabled: unparalleled ease of use and advanced security.

• Know your home: Door Sensor understands whether your door or window is open or closed.

• Easy setup: direct connection using Bluetooth Smart technology, no hub or gateway required.