Professional CCTV & Video Wall Solutions
Blog
The questions that come up while sizing a building system — answered with the arithmetic shown.
Fundamentals
A 5 MP sensor is 2880 pixels wide and a face needs about 250 pixels per metre, so the camera identifies across a view 11.5 m wide — whatever lens puts that width on the subject. Here is the arithmetic, and where it fails: height, light, zoom and the storage bill for detail.
Building Systems
Run the cable where you can. A wireless position is for a gate 400 m from the building, a compound with no mains, a wall nobody may drill — and it moves the cost from copper to coverage, a data plan and a battery. Here is the arithmetic that decides it.
Building Systems
A community pharmacy needs six to eight positions, not one wide camera over the shop floor: the counter, the till, the shelf run, the drugs store, the back door and the yard. Here is what each has to answer, and what resolution and storage it takes.
Fundamentals
One cable per camera, no mains outlet at ceiling height, and a power budget that decides what the system carries. What PoE is and where it stops.
Fundamentals
Half the questions about compatibility are about the handshake, half about features. What ONVIF guarantees, what RTSP adds, and where a mixed system breaks.
Fundamentals
The cost question behind a building quote is mostly a storage question: one formula, the gigabytes a channel produces, and what 30, 60 and 90 days hold.
Alternatives
A like-for-like brand swap changes less than most quotes suggest. What an alternative has to replace, what it must not break, and how to price the difference.
Buying Guide
Two quotes for one hotel, and a gap that is mostly scope rather than margin — four blocks account for it, each testable line by line.
Night Vision
Infrared buys an image in total darkness and pays for it in monochrome. Comparing colour and infrared, with the numbers that decide it.
Night Vision
Monochrome records brightness; colour records description. What a black-and-white night file cannot prove, what colour costs in storage, and how to specify it.
Night Vision
Starlight is a claim about sensitivity, not a technology. The four numbers any low-light claim needs before it can be compared, and how the thresholds behave.
Building Systems
A position-based counting method for office CCTV: from camera count to PoE ports and budget, then to recorder channels, storage and cable quantity.
Building Systems
Channel count, drive bays and ingress bandwidth decide which recorder you need. A worked method for sizing channels, storage and retention before you order.
Products
The port count is rarely the limit that stops a camera design. How to size the wattage budget, what the standards define, and when extend mode pays.
Products
Most camera links run at 100 Mbps, so why does the cable grade matter? Where CAT6 earns its premium on a CCTV run, and where CAT5e is still the right answer.
Products
Both forms use the same 5 MP imaging platform, so the choice is mechanical rather than optical. A position-by-position guide to domes and bullets.
Buying Guide
Two terms that sit side by side in tenders and mean unrelated things. What vandal-resistant cameras are for, what explosion-proof requires, and what to write.
Video Walls
How to size a control room video wall from the streams that must be watched at once: panels, HDMI outputs, decoder cards and decode capacity.
Send us the building type, floor count and camera estimate — we will come back with a system layout, a bill of materials and a price.
