A CCTV system helps you monitor your office premises
Many offices install CCTV to keep things nice and secure after hours, but also to keep a record of general comings and goings of staff and clients. A particularly good feature of CCTV is number plate recognition cameras, which can not only alert you to particular vehicles and record their movements but also allow or decline access to your premises by integrating the cameras with an automated gate or door.
Of course, CCTV will not only deter intruders and unwelcome visitors but crucially record and/or alert you to unauthorised activity, after hours.