Home CCTV has gone from a commercial expense to an ordinary household purchase in Pakistan. Prices have fallen, installation has become straightforward, and the reasons people want it — gate security, staff oversight, general peace of mind — have not changed.

But the market is confusing, full of technical terms used loosely, and the gap between a system that works and one that produces useless footage is large. This guide explains what actually matters.

Analog or IP: the first decision

For a straightforward household installation of four to eight cameras, either works. Analog remains popular in Pakistan because it is cheaper, easier to service locally, and tolerant of long cable runs. IP is the better technical choice if you want higher resolution, remote access that works well, or plan to expand.

Resolution: useful, but overrated in marketing

Cameras are sold on megapixels, and sellers push the biggest number. Resolution does matter — it determines whether you can identify a face rather than merely observe that a person was present — but it is routinely oversold relative to two things that matter more.

• Placement. A camera aimed at the top of someone’s head produces useless footage at any resolution. Mount at a height where faces are captured, not scalps.
• Lighting. A high-resolution camera pointed into a bright backlight produces a silhouette. Consider where the sun and lights are.

As practical guidance: 2MP (1080p) is adequate for general observation of a compound. 4MP or above is worth it where you need to identify faces or read a number plate at a gate.

Night vision is where cheap systems fail

Most incidents people install CCTV for happen after dark, and this is exactly where budget systems disappoint.

• Infrared range is quoted optimistically. A camera advertised at thirty metres will produce a usable image at considerably less. Assume the real figure is well below the claim.
• Infrared produces black and white footage. Where colour matters — clothing, vehicle colour — look for cameras with a supplementary white light or low-light colour capability.
• Infrared reflects off nearby surfaces. A camera mounted under an overhang or close to a wall can wash out its own image.
• Ambient lighting helps enormously. A modest outdoor light frequently improves footage more than upgrading the camera.

Storage: decide the duration first

The recorder and hard drive are sized by how long you want to keep footage before it overwrites.

What consumes storage:

• Number of cameras — directly multiplies it
• Resolution — higher resolution, larger files
• Frame rate — lower frame rates save considerable space with little practical loss for security use
• Continuous versus motion-triggered recording — motion detection saves a great deal, at the risk of missing something if triggering is poorly configured
• Compression — newer compression standards store substantially more on the same drive

Work backwards: decide you want, say, two weeks of footage, then let the installer specify the drive. Buying a recorder first and discovering it holds four days is the common mistake.

Outdoor durability

Pakistani conditions are hard on outdoor equipment — extreme summer heat, monsoon rain, dust, and coastal salt air in Karachi.

• Check the weatherproofing rating. Outdoor cameras need genuine ingress protection, not merely a plastic housing.
• Mount under some shelter where possible. Direct sun degrades housings and seals over time.
• Cable entry is the usual failure point. Water tracks down the cable into the connector. A proper junction box and a drip loop prevent it.
• Coastal areas need extra care — salt air corrodes mounts and connectors faster than anywhere else.

Power and backup

A camera system that stops recording during load shedding is watching precisely when you are least present.

• Put the recorder and cameras on a UPS. The load is small, so a modest unit gives hours of coverage.
• Include the network switch and router if you want remote viewing to survive the outage.
• PoE (Power over Ethernet) on IP systems simplifies this considerably — one cable carries power and data, and backing up the switch backs up every camera.

Buying used CCTV

Cameras and recorders trade second-hand and can be good value, with specific things to check.

• See it running, connected and displaying live footage. Never buy an untested camera.
• Check night vision specifically — failed infrared LEDs are a common fault and not visible in daylight.
• Ask the hard drive age and hours. Drives are consumable and a heavily used one will fail.
• Inspect housings for cracking, cloudy domes and corroded mounts. A cloudy dome ruins image quality permanently.
• Confirm the recorder is not password locked to a previous owner, and that it can be reset.
• Check the model is still supported — abandoned firmware means no security updates and often broken mobile apps.

A note on privacy

Cameras record other people, and that carries responsibility.

• Point cameras at your own property. Avoid framing neighbours’ windows, doors and private areas.
• Never place cameras in bathrooms, bedrooms or any private space, including for domestic staff.
• Tell people who work in your home that cameras are present. It is both fair and practical.
• Secure the system. Change default passwords immediately. Cameras left on factory credentials are routinely accessed by strangers.

Frequently asked questions

In short

Decide how long you want footage kept before choosing a recorder. Prioritise placement and night performance over megapixel numbers. Check outdoor ratings and seal the cable entries properly. Put the whole system on a UPS. And change the default password immediately.