Why camera and alarm complement each other
Cameras and alarm systems have different tasks. A camera shows what is happening and captures images. An alarm responds immediately to opening, movement, smoke, or sabotage. Together they provide more security than one of them alone.
When you receive an alarm notification, you want to be able to check what is happening. Cameras then help to see whether it's a real situation, a forgotten window, a pet or something else. That makes responding calmer and more focused.

