CCTV Cameras

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  1. Dahua 1080P All-in-One USB Camera
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  3. Dahua 4MP 24x Starlight IR WizMind Network Panoramic + PTZ Camera
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  5. iMOU Turret 2MP WiFi Outdoor Camera with Active Deterrence
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    iMOU Wi-Fi Knight 4K Camera 8MP 2.8mm Fixed Lens
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  10. Dahua 4MP 45x Starlight IR Network PTZ Camera
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  12. Dahua 4MP 45x Starlight Laser WizMind Network PTZ Camera
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CCTV Cameras: A Complete Guide to Modern Security Camera Systems

Modern CCTV cameras have evolved from simple recording devices to sophisticated systems with artificial intelligence capabilities. This comprehensive guide covers everything from basic specifications to advanced features like facial recognition and AI-powered analytics.

Technical Specifications and Features

Camera Types and Sensor Sizes

Sensor Formats

  • 1/3" (6.00 x 4.80mm) - Common in standard security cameras
  • 1/2.8" (6.46 x 4.84mm) - Better low-light performance
  • 1/2" (7.18 x 5.32mm) - Enhanced light sensitivity
  • 1/1.8" (7.60 x 5.70mm) - Professional-grade imaging
  • 1" (13.20 x 8.80mm) - Superior low-light capability

Resolution Options

  • 2MP (1920 x 1080p)
  • 4MP (2688 x 1520)
  • 5MP (2592 x 1944)
  • 8MP/4K (3840 x 2160)
  • 12MP (4000 x 3000)

Lens Specifications and Coverage

Focal Lengths

  • 2.8mm: 98° viewing angle (close-range monitoring)
  • 4mm: 87° viewing angle (general surveillance)
  • 6mm: 54° viewing angle (medium-distance detail)
  • 8mm: 40° viewing angle (longer distance)
  • 12mm: 27° viewing angle (specific area focus)
  • 16mm: 20° viewing angle (long-distance detail)

Varifocal Lenses

Common ranges include:

  • 2.8-12mm: Versatile coverage
  • 5-50mm: Long-range flexibility
  • 8-32mm: Detailed long-distance viewing

AI and Smart Features

Facial Recognition Technology

  • Deep learning algorithms
  • Multiple face capture
  • Face database management
  • Real-time matching
  • Age and gender recognition
  • Expression analysis

Advanced Analytics

  • Motion detection zones
  • Line crossing detection
  • Area intrusion detection
  • Object left/removed detection
  • Crowd density monitoring
  • Heat mapping
  • People counting

Environmental and Installation Specifications

Protection Ratings

  • IP66: Dust-tight and powerful water jets
  • IP67: Dust-tight and temporary immersion
  • IK10: Impact protection
  • TVS 6000V lightning protection
  • Surge protection

Mounting Options

  • Wall mounts
  • Pole mounts
  • Corner mounts
  • Pendant mounts
  • Ceiling mounts
  • Junction box compatibility

Power Requirements

  • PoE (Power over Ethernet)
  • 12V DC options
  • 24V AC support
  • Power consumption ratings
  • Backup power solutions

Common Applications and Recommendations

Entry-Level Security

  • 2MP resolution
  • 2.8mm fixed lens
  • Basic motion detection
  • IR range up to 30m
  • H.265 compression

Professional Security

  • 4MP-8MP resolution
  • Varifocal lens
  • Advanced analytics
  • IR range up to 50m
  • Smart features enabled

High-Security Installations

  • 4K resolution
  • AI-powered analytics
  • Facial recognition
  • Multiple sensors
  • Redundant systems

By understanding these specifications and features, security professionals can select the most appropriate CCTV cameras for their specific surveillance requirements, ensuring optimal coverage and functionality for their security systems.