Assertion: doorbell's camera | /r/CapableOf | detect motion
Facets:
Source sentences:
text: They all also provide alerts when the camera detects motion and allow videos to be captured and stored in the cloud, for a monthly fee.
text: Extended video recording: Often with video doorbells, a person moves so quickly through the frame that by the time the camera senses motion and starts recording, you can only see the back of the person.
text: Both the Ring and the Nest solve this problem by continuously recording; when the camera does detect motion, it then tacks on those few seconds prior to the event, so that you hopefully can see all of the person.
text: With many video doorbells and security cameras, there's usually a gap of a second of two between the time the camera detects motion and the time it starts recording.
text: View the video feed from your phone or computer, receive push alerts and emails when the camera detects motion, sees a person or hears a loud sound -- and review three hours of saved images for free.
text: The camera still detects motion, but the Peephole Cam also has a built-in impact sensor that lets it detect a knock on your door to notify you in the same manner.