I’m not certain about Nest, but I asked abode about this before. They said, “We have what is called abode Signal Guard. Unlike other smash and grab solutions, the Signal Guard works whether your system is self-monitored or professionally monitored. The abode Signal Guard alarm acts just like a normal alarm where notifications are sent and the siren(s) go off until the alarm is disabled. If you are a professionally monitored customer, the monitoring center is notified of the abode Signal Guard event.”
In terms of larger home integration, Nest is the very definition of a smart device. Its Works with Nest program automatically instructs connected products (such as smart lighting and thermostats) to perform their tasks without you having to tell them what to do. It’s an exceptionally hands-off solution, though you can still tweak it with custom preferences.
I installed a motion sensor inside a shed in my backyard (shed has a tin metal roof) and I kept getting a false alarm daily usually around 1 or 2pm; Ring informed me that their motion sensors use infrared technology and that excessive heat could cause a false trigger. They told me a contact sensor at the shed’s door should do the job and that’s what I will be doing next.
It was 20*F outside when I installed the cam. I didn't want to be running up and down a ladder if I had problems connecting to the network. I wired the cam up with a plug (from an old, grounded extension cord) and ran the wifi setup routine at my kitchen table. I verified everything was working (including the app, motion detection, etc.) before I installed it outside.