nest security camera system
Does Nest have a wireless camera? How much is a nest security camera?

Network video recorder (NVR) is a specialized computer system that includes a software program that records video in a digital format to a disk drive, USB flash drive, SD memory card or other mass storage device.

If you're currently experiencing a smoke or carbon monoxide concern or any other security or safety issue that requires immediate assistance, call your local 
Meet Nest Cam Outdoor. It stands watch 24/7, rain or shine. Plugs into power so you never have to worry about dead batteries. And sends an alert to your phone