TP-Link tapo T110 Sensor TP-Link tapo Smart Contact Sensor Tapo T110 Features 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. NOTES: tp link tapo Smart Hub is sold separately More wireless network products TP link official website Go Beyond Just Doors and Windows Place the Smart Contact Sensor elsewhere like your cabinets and drawers for more convenience.