A monitored CCTV system reduced the input needed from your side, you can outsource the protection of your facility to a professional team of security experts that can alert the authorities the instance you experience nefarious activity.
It’s more cost effective than having staff employed to remain on site, with no need for an office and equipment on site. There’s no training and employment headaches to worry about. It’s often more secure, as the liability for any lapse in security fall to the security management provider.