Ideal for any home, office, air bnb or rental property. Our smart home wifi window/door sensor is small & compact appearance and has the ability to send you push notifications to your device to alert you if a door or window is opened or left opened. You can manage your sensor and alerts by downloading the app to your mobile device or tablet. This device helps make your home smarter no matter how far away you are. Wifi Technology, working standalone and also work with Amazon Alexa and Google Home. Program your hub to automate your lights when the door opens or kick on security camera when someone opens your window, this sensor is ideal for any home or office!