Author name: Etzard Geldenhuys

DORI/DCRI Classification

Pixel Density guide

Understanding Pixel Density in CCTV systems Have you ever looked at CCTV footage, zoomed to see some detail and suddenly released that the image is pixelated, and you can’t see the details that you expected … Pixel Density determines whether your CCTV footage is actually usable when something happens. Even high‑resolution cameras can fail if […]

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Basic Electronics

Basic Electronics for Alarm Systems ⚠️ Safety First Before you jump in, let’s get the one thing that matters most out of the way: safety. This stuff is powerful and useful, but it pays to respect it. Why This Guide Exists This is A beginner‑friendly guide for technicians, hobbyists, and anyone working with low‑voltage security

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