Tapo Smart Contact Sensor, Real-Time Monitoring Smart Window & Door Alarm Sensor , Instant Push Notification,Battery included,Easy Installation,Work with Alexa,Tapo Hub Required separately(TapoT110)

Tapo Smart Door/Window Contact Sensor,Real-Time Monitor,Instant Push Notification,Battery Included,Easy Installation (TapoT110)

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