Which one is best for home security? Doors and windows or Security alarm !?

Though very old question...
1. NVR/DVR+Camera or IP camera: it's a system, you can monitor everywhere. And you can get alarmed by phone. Just the installation is a little complex.
2. Door/window alarm system: you can monitor door, window or every corner, with alarm message sent to you.
3. Door Viewer like Skybell: a cool gadget, connecting to your phone directly when someone pressing your door button or motion detected before your door.
4. Hidden Camera: normally with compact size and easy inst

Doors and windows fixed with alarms are best for home security.

Doors and windows with security Alarm ...................................

Security alarm with doors and windows, but Alligators should be your best home security.

fix cctv at your home.

Alligators surrounding your house. :--)

Doors and windows with security Alarm

a nice chair and a shotgun :D