Window/Door Safeguard - Monitors the opening & closing of windows, doors, cabinets, the fridge, or the mailbox in real time Instant App Notification - Is your parcel locked away? Find out immediately with instant notifications Smart Action Support - Connect the actions with other smart devices for a welcome return home Easy Installation - Mount to nearly any surface with included 3M adhesive Great Compatibility - Just one part of the integrated Tapo ecosystem Smart Contact SensorYour Windows & Doors Safeguard - Real-Time Monitor- Instant Notification- Smart Automation- Versatile Uses- Easy SetupKnow the StatusStop wondering if you closed all your windows after leaving home. Check on your doors and windows at a glance with the Tapo app.Turn Lights On AutomaticallySet your Smart Contact Sensor to trigger on the lights when you open your door.Go Beyond Just Doors and WindowsPlace the Smart Contact Sensor elsewhere like your cabinets and drawers for more convenience.Instant Push Notificati