4MP vs. 4K: what resolution actually identifies a face
Resolution only matters at the distance you need. Here is how to work out whether a 4MP or 8MP (4K) camera can identify a face at your door.
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PoE vs. Wi-Fi security cameras: which to install
Power over Ethernet versus wireless cameras: what each is good at, where each fails, and why most professional installs still run cable.
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How many cameras does a small business need?
A practical way to count cameras for a shop, office or warehouse: map the entrances, the money and the stock, then size the recorder with room to grow.
