Touch switches are electrical switches that operate by the user simply touching a surface, often using capacitive sensing, eliminating the need for mechanical push buttons or toggles.

A digital door lock is an electronic security device that allows access to a door using methods other than a traditional mechanical key, such as PIN codes, smart cards, fingerprints, or mobile apps.

A video door phone is a security device that allows you to see, communicate with, and remotely control access for visitors at your building's entrance.