Security Camera Buying Guide

Security Camera Systems Expert Guide

Learn everything you need to know about selecting the right security camera system for your home or business — from HD video, camera types, and storage options to wired vs wireless solutions.

Need Help Choosing a System?

Check out our expert recommendations and system comparisons for your property.

View Expert Systems

Why HD Video Is Essential for Security

Investing in high-definition security cameras ensures crystal-clear footage. HD systems allow identification of faces, license plates, and activity that analog cameras may miss.

  • 720p (1MP): Basic HD resolution
  • 1080p (2MP): Full HD
  • 4MP–8MP: 2K to 4K Ultra HD

HD video enables digital zoom without pixelation, maintaining clarity for critical surveillance footage.

HD Security Camera Footage Example

Types of Security Camera Systems

  • Analog CCTV Systems: Cost-effective, lower resolution, uses RG59 coaxial cables
  • HD CCTV Systems: HD over coax with BNC connectors, supports up to 4K
  • IP Systems: Ethernet (CAT5/CAT6), PoE-powered, supports up to 4K video

Visit our System Comparison Page for detailed insights.

DVR vs. NVR Recorders

Recorders are the brains of your system. Choose the right one based on camera type:

  • DVR: Works with analog and HD CCTV cameras
  • NVR: Compatible with IP cameras

All recorders support remote viewing, motion-triggered recording, and event playback with no monthly fees.

DVR NVR Hard Drive

Types of Security Cameras

CCTV Security Pros cameras can be used both indoor and outdoor.

Security Camera Types

Camera Type Key Features
Bullet Cameras Ideal for long-range outdoor viewing, strong IR
Dome Cameras Vandal-proof, discreet, wide-angle indoor/outdoor use
PTZ Cameras 360° pan-tilt-zoom control, ideal for large areas
License Cameras Captures and Stores License Plates
Fisheye Cameras Wide angle and up to 360° views
Wireless Cameras 75 ft wireless range, easy install, great for small spaces

Lens Size and Field of View Guide

Motorized Zoom Camera

Lens Size Field of View Best Use
2.8mm ~110° Large open areas, parking lots
3.6mm ~90° Entryways, offices
6–12mm Varifocal Adjustable Zoom-in capability for focused viewing
50mm+ Narrow License plates, gates, distant targets

Check our Camera Lens Comparison Page for real video examples.

Wired vs. Wireless Security Cameras

While wireless cameras are easier to install, wired cameras offer the most reliable performance and better security — ideal for commercial environments.

  • Wireless: Easy to set up, but limited range and clarity
  • Wired (PoE): Reliable, no signal drops, recommended for business use

Video Storage & Surveillance Footage

Choose storage based on number of cameras and retention needs:

  • 1TB for 2–4 cameras
  • Up to 64TB for 64-camera systems
  • Expandable drives, motion-only recording recommended

Hard Drive for DVR and NVR

Explore Surveillance Hard Drives to match your storage requirements.

Why Choose CCTV Security Pros?

  • ✅ Over 70,000 systems sold nationwide
  • 3-Year Warranty on all products
  • USA-based Expert Support
  • Free Shipping on orders over $100
  • 100% Satisfaction Guarantee

Request a Custom Quote or Contact Us for help choosing the best security camera system.

Ready to Upgrade Your Security System?

Explore our recommended systems, compare camera types, and get expert guidance for your home or business.

View Expert Systems