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CCTV guide & calculator pro

Official Description

Features :

- Surveillance
- Purpose-Considerations-Securing
- CCTV's strengths
- CCTV's limitations
- Operation
- CCTV diagram
- IP-CAM diagram
- Types of cameras
- CCTV features
- DVR
- CCTV Monitoring
- CCTV resolution
- CCTV's chip types
- CCTV's lenses
- LUX
- CCTV attachments
- CCTV lenses calculator