The doorbell uses both video analytics and passive infrared to detect motion in its field of view.
Video analytics is when the doorbell continuously analyze the video to see if it can detect a human being or a fairly large body that’s moving in the frame. This reduces false motion triggers and more reliable notifications.
During night time and low light scenarios, the doorbell uses passive infrared technology.
When motion is detected, the doorbell will issue a notification to you to alert you. If you have a recording subscription or an interactive monitoring plan, the doorbell will also record the event. If you do not have a subscription, you will be shown the live streaming view from the doorbell.
You can change the motion detection settings. Learn more here.