CCTV is one of the most misunderstood categories in business IT. Most installations are driven by price, not specification. The result: cameras that produce unusable footage at night, storage that fills up in four days, remote access that has been broken since installation, and no one who knows the admin password.

Resolution matters less than placement

A 4K camera pointed at the wrong angle is worth less than a 1080p camera positioned correctly. Before specifying hardware, define what you need to capture: faces at an entrance, license plates at a gate, overview of a warehouse floor. Each use case has different focal length, field of view, and positioning requirements. A camera audit and site survey before procurement prevents buying the wrong hardware entirely.

That said: 1080p is the minimum acceptable resolution for any camera that needs to identify individuals. 4MP or 4K is appropriate for wide scenes where you will crop in post.

Night vision and IR range

Consumer-grade cameras advertise "night vision" with an IR range that does not match the space they are covering. A camera with 15-meter IR range covering a 40-meter parking lot produces nothing useful after dark. Check the IR range against the actual distance to your subject. For outdoor areas with complete darkness, white-light cameras or external IR illuminators are more reliable than built-in IR.

Storage: NVR vs. cloud

An NVR, Network Video Recorder, stores footage on-site. A cloud-managed system stores footage remotely or in a hybrid configuration. Both have a place:

  • NVR: Higher storage capacity, lower recurring cost, footage stays local. Risk: if the NVR is stolen or destroyed, footage is gone. Requires local power and network continuity.
  • Cloud: Off-site storage survives a physical incident at your premises. Higher bandwidth consumption. Recurring cost. Better for remote multi-site management.

For most businesses, the right answer is a local NVR with at least 30 days of retention plus cloud backup of critical camera streams. Do not rely on a single local storage device with no offsite copy.

Remote access security

Most CCTV systems are configured for remote access via port forwarding on the router. This exposes the NVR directly to the internet. NVR firmware is notoriously slow to update and frequently has unpatched vulnerabilities. A more secure approach: VPN access to the network, with the NVR accessible only from within the VPN. It takes more setup but removes direct internet exposure.

What professional installation gives you that plug-and-play does not

Camera positioning based on a coverage map. Correct cable management with labeled runs. Proper weatherproofing on outdoor installations. Configured motion zones so you receive relevant alerts, not 400 notifications per day. A tested and documented system with credentials you actually have. And someone who picks up the phone when something stops working.

A CCTV system that is not working when you need it is not a security asset. It is a liability that gives false confidence.