I would purchase a couple of google Nest webcams. It has smart alerts to tell you if strangers faces are detected. The added bonus is you can talk with her via

I would purchase a couple of google Nest webcams. It has smart alerts to tell you if strangers faces are detected. The added bonus is you can talk with her via the device when her phone doesn’t work. It works via wifi so you need good wifi and an electric outlet to plug it into.