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16mm 650nm ir filter m12 mount fixed focus cctv lens for cctv megapixle ip usb camera купить по лучшей цене

Digital surveillance systems (CCTV) are increasingly being used for daily security concerns globally. This technology holds a huge potential for deterring crime and monitoring for various applications. This text is a succinct, down to earth introduction to CCTV with adequate exercise activities. It contains 6 modules. Module 1 is introduction to Digital Surveillance systems (Closed Circuit Tele-Vision-CCTV). Module 1 discussed the types of CCTV systems with proper comparison. Module 2 is all about the Cameras used in CCTV systems. Module 3 discuss selection of appropriate hardware required for CCTV system. Module 4 is concentrates on the cables and connectors for CCTV system with practical crimping visual guides. Module 5 is an introduction to the software that makes all CCTV simulations, calculations and visualization possible. Module 6 concludes with the process and documentation for CCTV installation.
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