Tapo Smart Contact Sensor, Real Time Monitoring Smart Window, Instant Push Notification, Battery Included, Easy Installation, Works with Alexa, Tapo Hub Required Separately (TapoT110), Package May

Tapo T110 Smart Door Alarm, Window Door Alarm Sensor with Real-Time Monitoring, Instant Push Notifications, Create a Smart Home Automation, Battery Included, Works with Tapo Devices Alexa Google Home

Tapo H100 SmartHub with Chime, Work with TapoSmart Switch, Button and Sensor,Whole-Home Coverage,Connect Up to 64Devices,19 Ringtones,Energy-Efficient,Wireless, Quick and Easy Setup,Packaging may vary

Tapo S200B Smart Button, One-Click Alarm, Lighting Control, Customized Actions, Smart Doorbell, Magnetic Mounting, Battery Included, Easy Installation, Multiple Locations Control, Tapo Hub Required