BEWARE, GOOGLE NEST security system boast about having 24 hour surveillance that informs you when someone has been spotted by your Nest camera/doorbell. Youre get that service for about a week then its gone. Moreover, if you want to continue to have this surveillance, youre going to have to pay a ridiculous monthly charge (dependent upon how many cameras you use). User's recommendation: Don’t fall for it. It’s not worth the money or the inconvenience.