How to choose the right CCTV installation

This article was machine-translated from French and is being reviewed. Prices are in Algerian dinars excl. VAT.

To choose a suitable CCTV installation, start with what you want to see and prove, not the equipment. List your zones, set an objective per zone, then deduce the definition, night vision, number of channels, storage and power. Here is the five‑step method a technician follows during a visit.

In short

  • A camera per zone and objective: deterrence, identification and recording do not require the same framing.
  • 2 MP often suffices for an overview. Identifying a face at distance requires more pixels on the target (higher resolution, appropriate focal length) and more storage.
  • Get a recorder with spare channels: moving from 4 to 8 channels costs an extra 1,500 to 9,200 DA HT, depending on the series.

Step 1: zones and objective of your CCTV installation

Walk around the site with a plan and list the zones: entrance, cashier, stockroom, parking, perimeter. For each zone, set an objective.

  • Deterrence: visible cameras placed at the entrance.
  • Identify: recognise a face. Tight framing, good lighting, higher resolution. Reading a licence plate additionally requires a dedicated camera and settings (angle, shutter speed, lighting): an overview camera cannot do this reliably.
  • Recording: keep evidence. Wide coverage, sufficient retention time.

A single camera rarely does all three. At a gate, one wide camera sees who arrives, and another, framed on the door, identifies.

Step 2: definition, from 2 to 8 MP

2 MP equals 1920 × 1080 and 8 MP equals 3840 × 2160 (4K). Between them, 4 MP is 2560 × 1440 (2688 × 1520 on some models) and 5 MP is about 2592 × 1944. More pixels give more detail at distance, but the stream is heavier and the recorder must accept this resolution.

Store price list asloitech.com as of 06/11/2026, subject to availability.

DefinitionExamplePrice (DA HT)
2 MPHDCVI bullet HAC‑HFW1200TP6,500 (in stock)
4 MPIP bullet Full Color HFW3449T1P-AS-PV34,000 (in stock)
5 MPHDCVI bullet DH-HAC-HFW1500TP12,800 (in stock)
8 MPIP dome Full Color HDW3849H-AS-PV42,000 (in stock)

In HDCVI, moving from 2 to 5 MP costs 12,800 − 6,500 = 6,300 DA HT per camera. IP lines mix range and technology: see IP or analog camera. Resolution does not replace good placement: for identification, what matters is the number of pixels on the face, thus resolution, focal length and distance to target.

Step 3: night vision and Full Color

An infrared camera gives a black‑and‑white image at night, with range depending on the model (see manufacturer data sheet). A Full Color camera provides a colour image at night, useful for describing clothing or a vehicle. Depending on the model, it achieves this with a very sensitive sensor and bright lens, or with an integrated white light that turns on at night: this second case also lights the scene and may be visible from afar.

In the store, the bullet 2 MP Full Color HAC-HFW 1209 CP-LED costs 8,500 DA HT (in stock), versus 6,500 DA HT for the standard bullet 2 MP: 8,500 − 6,500 = 2,000 DA HT difference. Its designation also indicates audio and a metal housing: the gap is therefore not limited to night‑vision color.

Step 4: number of cameras, channels and storage

Count your cameras by zone, then add a margin: 4‑channel for 4 cameras leaves no room for a fifth. The XVRs in the store come in 4, 8, 16 and 32 channels, from 12,000 DA HT (4‑channel Cooper series) to 75,000 DA HT for the cheapest 32‑channel (XVR5232AN-I3), all in stock. Moving from 4 to 8 channels costs 28,000 − 18,800 = 9,200 DA HT in the i3 series. In the Cooper series, the 8‑channel (XVR1B08H, 13,500 DA HT) costs 13,500 − 12,000 = 1,500 DA HT more than the 4‑channel (XVR1B04), but the two models are not equivalent: according to the datasheet, the 4‑channel records up to 1080N and the 8‑channel up to 1080p at 15 fps. For 5 cameras, take 8 channels.

In our confirmed quotes, 33 of 37 projects have 8 cameras or fewer (order of magnitude observed in our quotes).

The disk is chosen based on the number of cameras, their bitrate and desired duration. Calculation: days of recording and hard drive. Cost of a complete coaxial project: price of a CCTV installation.

Step 5: power, UPS and remote access

  • Power supply: coaxial cameras plug into a 12 V block (3,200 DA HT for 4 outputs, in stock), IP cameras via PoE into a switch (15,000 DA HT for 8 ports, in stock). Voltage drops with cable length and gauge: over long distances, a larger section or power near the camera is needed.
  • UPS: with power outages, it prevents the recorder from shutting down abruptly. Count starting at 10,500 DA HT (EAST UPS EA265 Pro 650 VA, in stock). Autonomy depends on consumption: see UPS for cameras.
  • Remote access: via the recorder app, with an on‑site internet connection. Regulation prohibits connecting public‑sector surveillance systems or those filming open public spaces to the internet (executive decree n° 09‑410 amended by decree n° 16‑61, art. 20 bis); verify your situation before enabling remote access. If remote access is allowed in your case, change default passwords, update firmware, and do not open ports on the router: see remote access to cameras.

Frequently asked questions

How many cameras are needed for a small shop?

There is no fixed number. A starting point: one camera at the entrance, one at the cashier, one in storage. The exact number comes from the surveyed zones, area and blind spots.

Is the highest definition always necessary?

No. An 8 MP IP dome at 42,000 DA HT costs 42,000 − 6,500 = 35,500 DA HT more than a 2 MP HDCVI bullet. Reserve high definition for identification zones and plan storage.

Dome or bullet?

The bullet is visible, thus deterrent, and easy to orient. The dome is more discreet and harder to grasp or adjust by hand; its shock resistance (IK rating) depends on the model and housing, metal or plastic. In 2 MP HDCVI, the dome PVC costs 6,000 DA HT and the bullet 6,500 DA HT.

A technician can survey your zones and quote an installation on site: discover our cCTV surveillance solution or browse the CCTV category in the store. For obligations reported by the press (declaration to ANPDP, informing filmed persons), read your ANPDP obligations. AsloTech can help you prepare the steps with ANPDP; this assistance does not constitute legal advice.

See the CCTV Surveillance page

Also read

AT

AsloTech Team

Certified low‑voltage installer in Algiers.

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