TP-Link Wireless Smart Motion Sensor "Tapo T100", White//Wide Range Detection – Captures motion up to 23 ft.(7m) away and through 120° view.Motion-Activated Light – Control smart lights based on your movement and schedule.Energy Saving – Automatically turn on connected smart devices when you come and go.Instant Alerts & App Notification – Alerts you in Away Mode for anything you want to know.Battery-Powered – Compact battery-powered design supports over one year of use.Easy Installation – Mount it by attached 3M adhesive or the build-in magnets.