Smart Sensor Starter Kit Window/Door Safeguard - Monitors the opening & closing of windows, doors, cabinets, the fridge, or the mailbox in real time. Motion Detection - Captures motion in your home with customization. Smart Action Support - Connect the actions with other smart devices for a smarter home. Instant Alerts & App Notification - Triggers alarm to warn unwanted visitors and sends you notifications. Easy Installation - Place the sensors whereever you need with our toor-less installation. Package Contents Tapo H100 × 1Tapo T100 × 1Tapo T110 × 2Button Battery CR2450 × 1Button Battery CR2032 × 23M Adhesives × 7Quick Start Guide