Questions about TP-Link Tapo T110

You can simply glue the small part to the side instead of the back.

To receive notifications on your mobile phone when the door is opened, in addition to the Tapo T110 sensor, a Tapo Hub must also be installed. The sensor connects to the Tapo Hub via low-power radio frequency, which is essential for receiving instant notifications and for integration with other Tapo smart devices.

Yes, this product triggers an alarm when a door or window is opened unexpectedly. The alarm is sounded through a separate device, such as the Tapo Hub, which is required for this functionality.

You need a hub TP-Link Tapo H100 https://www.digitec.ch/de/s1/product/tp-link-tapo-h100-smart-home-hub-22620814) which is connected to the WLAN. Or the TP-Link Smart Hub Tapo H200 TP-Link Smart Hub Tapo H200 which can also be connected directly to a router via RJ/45.