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Knowledge Centre

SJ Electricals

Professional Electrical & Electronic Solutions

CCTV & Surveillance

How to Choose the Right CCTV Camera for Your Home or Business

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Resolution, night vision, storage, wired or wireless? Here's a simple guide to choosing cameras that actually fit your space and budget.

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Buying Guides

Dome, Bullet or PTZ: Which Camera Goes Where?

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Each camera type is built for a different job. Learn where domes, bullets and PTZ cameras work best, and where they don't.

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CCTV & Surveillance

4G SIM and Solar Cameras: Surveillance Where There’s No Wi-Fi or Power

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Construction sites, farms and remote gates can be monitored too. Here's how SIM-based and solar CCTV cameras work.

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Networking

Why Your Office Wi-Fi Is Slow, and How Good Network Design Fixes It

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Dead zones and dropped calls are rarely the internet provider's fault. We explain the common causes and the fixes that work.

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Security Systems

Face Recognition or RFID Cards: Which Access Control Is Right for You?

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Comparing cost, convenience and security to help you choose the best access control system for your office or factory.

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IT Infrastructure

Why an AMC Makes Sense for Your CCTV and IT Systems

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A camera that stopped recording weeks ago is only discovered when you need the footage. Here's how an AMC prevents that.

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