How to choose a CCTV system for your business
You choose a CCTV system from its purpose and the risk, not from the camera. First decide what you want to prevent or prove, and where. Then give every camera one clear job, set recording and deletion within the rules, decide who watches and who responds, and plan maintenance. Cameras that nobody watches and nobody maintains only give a false sense of security.
Updated: 5 min read
Where do you start when choosing a CCTV system for a business?
With the question “what do I want to prevent or prove, where and when”. The answer sets how many cameras you need, where they go and what the image must show.
- What is at risk: stock, the till, the warehouse, vehicles, people.
- Where the risk comes from: entrances, the perimeter, loading bays, public areas.
- When: opening hours with the public, or nights when the site is empty.
- What the image must show: that someone is moving (detection), what they are doing (observation) or who they are (recognition). Each level needs a different distance, angle and lighting.
That is how OVIT approaches security systems: not from a brand or a device, but from the risk, how people and vehicles move, the response model, and the evidence the owner needs.
Where should CCTV cameras go in a business?
Where the risk passes through: entrances, the perimeter and points of value. Every camera should have one job you can state in a sentence.
- Entrances and exits: where everyone passes close by, so faces can be recognised.
- Perimeter and yards: so an approach is visible before anyone reaches the building.
- Points of value: tills, stockrooms, loading bays, areas with high-value equipment.
- Lighting: check the image at night too; a camera facing a light or a window shows silhouettes.
Cameras cover entrances, the perimeter and points of value, not workstations. Where cameras are and are not allowed is covered in the guide to CCTV and the GDPR.
How should CCTV recording and retention be set up?
Set image quality and recording mode so you see what you need, and set automatic deletion within the limit the rules allow. Retention is not the installer’s choice.
- Continuous or motion-triggered: continuous recording misses nothing; motion-triggered recording keeps less footage, but must be tested to catch what matters.
- Image quality: enough for each camera’s job, especially at entrances.
- Correct time: the recorder’s clock must be accurate, or the footage loses value as evidence.
- Access to the recorder: few people, personal passwords, a locked room.
- Export: a written procedure for isolating and handing over an incident’s footage.
How long you may keep footage and how to set automatic deletion is explained in the guide to CCTV footage retention.
Who watches the CCTV and who responds?
Decide before installation. Cameras that only record help after the fact; to stop something, someone has to see the alert and someone has to go.
- Recording only: footage is checked once something has already happened.
- Alerts: video analytics flag movement in the zones and hours you set, so only what matters gets reviewed.
- Live monitoring: someone watches, verifies and calls for response.
- Response: a guard on site or a patrol that goes when needed.
In OVIT’s CCTV systems, live monitoring, motion analytics and evidence capture connect visual verification straight to the officer who acts on it, and the event joins the same record on the Guardly platform. For when you need a person on site, see security guard or security system.
What maintenance does a CCTV system need?
Regular checks that every camera shows what it should and that the recorder is actually recording. Most failures only show up on the day you need the footage.
- The image from every camera, day and night: clean lens, right angle, no foliage or obstructions.
- The recorder is recording, the disk works and the time is right.
- A test search and export of footage.
- Software updates and password changes.
- A re-check after every change on site: new shelving, a new entrance, different lighting.
OVIT hands over a system after testing the device, the integration, the human response and the record together, and follows with lifecycle support: maintenance, change and review. Agree in the contract who checks what, and how often.
What should I watch for on data protection with CCTV?
Cameras record people, so data protection rules apply from day one. Design the system to comply rather than fixing it afterwards.
- Write down each camera’s purpose before you mount it.
- Point cameras only at your own premises; where the system allows, mask what does not need to be seen.
- Limit who sees live images and who can access the archive.
What is allowed, what the sign must say and what applies to employees is covered in the guide to CCTV and the GDPR for businesses.
At a glance
- Start from the purpose and the risk, not from the camera or the brand.
- Every camera has one job: an entrance, the perimeter or a point of value.
- Footage retention is set by the rules and configured as automatic deletion.
- Without someone watching and someone responding, cameras only record.
- Check regularly that every camera shows the right image and the recorder is recording.
Frequently asked questions
How many CCTV cameras does a business need?
As many as there are jobs to do: one for each entrance where faces must be recognised, and as many as the perimeter and points of value need. The number comes from the risk map, not from a ready-made package.
Is it enough for cameras to record if nobody watches them?
Only if seeing what happened afterwards is enough for you. To stop an incident, you need alerts or live monitoring and someone who will respond.
How do I know my CCTV system is working properly?
Regularly check each camera’s image by day and night, check that the recorder is recording with the right time, and do a test search and export of footage.
Want us to look at your site?
Talk to the OVIT operations team — a real person answers.