HTZ Technology
HTZ Technology

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CCTV & Video Surveillance Solutions

Choose your industry: every industry has different risks, site sizes and compliance needs. Pick yours to see the right architecture, buying guide and compatible products.

Corporate Offices & Towers

Secure, connected workplaces from reception to server room.

Key challenges

Employee access, meeting rooms, IT reliability, communication

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CCTV & Video Surveillance: what to know before you buy

A CCTV system is more than a set of cameras. Cameras, the recorder, hard drives, the network and the power supply have to be planned together, so the system records clearly day and night and keeps the footage for as long as you need it.

Most new systems are IP: each camera sends its own high-resolution video over the network and usually takes its power from a PoE switch on the same cable. Analog (HD-TVI / HD-CVI) systems are still a good, economical choice for smaller sites and for upgrading old coaxial cabling.

What a complete system includes

  • IP or analog cameras: dome and turret indoors, bullet or turret outdoors, with the right lens for each view
  • An NVR (IP) or DVR (analog) with enough channels and bandwidth for every camera
  • Surveillance hard drives sized for your recording days and quality
  • A PoE switch and Cat6 cabling, or a hybrid setup that reuses existing cables
  • UPS backup so recording continues during power cuts
  • Remote viewing on mobile and PC with user rights for each person

How to choose the right setup

  1. List the places that matter: entrances, cash points, stores, parking and blind spots, and decide whether you need to see faces, number plates or only movement.
  2. Pick the resolution and lens per camera: a wide lens covers an area, a narrower lens identifies a person at a distance.
  3. Decide how many days of footage you must keep, then size the hard drives for it (use the storage estimate on the solution pages).
  4. Plan night vision: infrared for black-and-white images, full-colour or smart hybrid light where colour at night matters.
  5. Keep the system secure: change default passwords, update the firmware and put the cameras on their own network.

How a project runs

A good CCTV project starts with a site survey, followed by a camera layout, an equipment list and a clear quotation. After installation every view is checked, recording days are verified and the users are trained on playback and the mobile app.

CCTV & Video Surveillance: common questions

IP or analog CCTV: which should I choose?

IP cameras give higher resolution, smarter features and simpler cabling with PoE, so they suit most new installations. Analog HD cameras cost less and can reuse existing coaxial cables, which makes them sensible for small sites and upgrades.

How many days of recording do I get?

It depends on the number of cameras, the resolution, the compression (H.265 saves space) and the hard drive size. The storage estimate on the solution pages shows the drive size you need for the days you want to keep.

Can I watch the cameras on my phone?

Yes. NVRs and DVRs connect to a mobile app and PC software, so authorised users can see live video and playback from anywhere with internet access.

Do cameras keep recording in a power cut?

Only if the recorder, the PoE switch and the network equipment are on a UPS. Planning the UPS together with the cameras keeps recording running through short outages.

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