The Extrion Knowledge Center
CCTV, access control, alarms and safe remote viewing.
Security & Surveillance
10 min
Buying CCTV for the first time is confusing. Sellers use words like turret, NVR, PoE and IP67, and two cameras that look alike can differ a lot in qua...
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Security & Surveillance
10 min
"How many days will it record?" is one of the most common questions about any CCTV system, and the answer is usually "it depends". This guide shows wh...
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Security & Surveillance
10 min
When you plan CCTV, one of the first questions is about shape: the long "bullet" camera you see on gate pillars, or the round "dome" you see on shop c...
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Security & Surveillance
10 min
Checking your shop, home or hotel entrance from your phone is one of the most useful things a CCTV system can do. It is also the part most often set u...
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