e. , sets of instructions need not be implemented as separate software programs, procedures, modules or data structures, and thus various subsets of these modules may be combined or otherwise rearranged in various implementations. In some implementations, the memory 606, optionally, stores a subset of the modules and data structures identified above. Furthermore, the memory 606, optionally, stores additional modules and data structures not described above. In some implementations, the server side module 314 of the server system 164 determines that a user press is being applied on a button of a doorbell camera 106, and in accordance with the determination, sends a push notification to a user mobile application 624 executed on a client device 220. Optionally, when such a notification is pushed into the client device 220, the user mobile application 624 is automatically activated to display a user interface to receive a user response. Alternatively, in some implementations, the server system 164 detects motion or recognizes a face of a person in a field of view of the doorbell camera 106 based on video images recorded by the camera 106. In accordance with the detection or the recognition, the server system 164 sends a push notification to the user mobile application 624 executed on the client device 220 in association with the doorbell camera 106. Optionally, facial recognition is implemented on device i. e. , locally on the doorbell camera 106 and in cloud e.

Motion Sensor

6 Volt 1/2AA Battery LS14250Regular Price:$3.

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The display lets you communicate with a professional monitoring service when an alarm is triggered and view video from any of the installed security cameras.

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