6 questions answered
CCTV (Closed-Circuit Television) is a video surveillance system that transmits signals to a specific set of monitors or recorders. Unlike broadcast television, CCTV signals are not openly transmitted.
Modern CCTV systems use digital video recorders (DVRs) or network video recorders (NVRs) to store footage. The basic components include:
IP (Internet Protocol) cameras transmit digital data over a network, offering:
Analog cameras use coaxial cables and DVRs, typically offering:
For most homes, 2-4 cameras are sufficient. Place cameras at entry points (front door, back door, garage), and consider covering windows or blind spots.
Larger properties may need 6-8 cameras for complete coverage. Consider these key areas:
In most areas, you can install CCTV on your property without permission. However, there are important considerations:
Always consult local laws before installing surveillance equipment.
Storage duration depends on your needs:
Factors affecting storage needs:
Yes, most modern CCTV cameras have infrared (IR) LEDs for night vision, allowing them to capture clear footage in complete darkness up to 30-100 feet.
Night vision technologies include:
For best results, ensure cameras are positioned to avoid IR reflection from nearby surfaces.
