Frequently Asked Questions

CCTV (Closed Circuit Television) is a system of video cameras used for surveillance and security monitoring in a specific area.

CCTV is used for security, monitoring activities, deterring crime, and collecting evidence.

CCTV cameras capture video, which is transmitted to a recorder (DVR/NVR) and displayed on a monitor or stored for later review.

Cameras, a recorder (DVR/NVR), cables, a monitor, and power supply.

Dome, bullet, PTZ, IP, analog, and thermal cameras.

Analog cameras use coaxial cables and have lower resolution; IP cameras use internet networks and offer higher resolution and features.

A Digital Video Recorder (DVR) stores footage from analog CCTV cameras.

A Network Video Recorder (NVR) stores footage from IP cameras over a network.

Yes, CCTV can record locally to a DVR/NVR without internet, but remote access requires an internet connection.

Storage duration depends on the hard drive size, number of cameras, and recording settings (typically 7–90 days).

Consider your budget, area size, camera resolution, night vision needs, and whether you need remote access.

Place cameras at entry points, high-traffic areas, and blind spots, ensuring clear visibility.

Typically 8–12 feet to avoid tampering while capturing clear footage.

Yes, with basic technical skills, but professional installation ensures optimal setup and compliance.

Drill, screwdriver, cables, cable clips, power adapter, and a ladder.

Depends on the size and layout; typically 4–8 cameras for a medium-sized home.

Yes, most cameras require a power source, though some use PoE (Power over Ethernet).

Power over Ethernet (PoE) allows cameras to receive power and data through a single Ethernet cable.

Yes, but laws in some regions require visible cameras for legal surveillance.

Install the camera's app, connect the system to your Wi-Fi, and log in with the provided credentials.

Night vision allows cameras to capture clear footage in low-light conditions using infrared (IR) technology.

Typically 20–100 feet, depending on the camera model.

PTZ (Pan, Tilt, Zoom) cameras can move and zoom remotely for flexible monitoring.

Motion detection triggers recording when movement is detected, saving storage space.

Common resolutions are 720p, 1080p, 4MP, 5MP, and 4K.

A camera with a wide field of view (90–180 degrees) to cover larger areas.

Fixed lenses have a set field of view; varifocal lenses allow adjustable zoom and focus.

Some cameras have built-in microphones, but audio recording may be restricted by local laws.

A fisheye camera provides a 360-degree panoramic view, ideal for large areas.

IP ratings (e.g., IP66) indicate resistance to dust and water; higher numbers mean better protection.

Depends on resolution, frame rate, and retention period; a 1TB drive can store ~30 days for 4 cameras at 1080p.

Yes, many modern systems offer cloud storage for a subscription fee.

Most systems overwrite the oldest footage automatically.

Export footage to a USB drive or external hard drive via the DVR/NVR interface.

Yes, by upgrading the hard drive or adding an external storage device.

Continuous recording captures footage 24/7, using more storage than motion-based recording.

H.265 is an advanced video compression format that reduces file size while maintaining quality.

Use the DVR/NVR interface to search by date and time.

Yes, most systems allow selective deletion, but check local laws on evidence preservation.

Typically 15–30 frames per second (FPS); higher FPS provides smoother video.

Use a soft, dry cloth to clean the lens; avoid harsh chemicals.

Check for dirt on the lens, incorrect focus, or low resolution.

Likely an issue with the IR LEDs or power supply; check connections and settings.

Refer to the manual; usually involves pressing a reset button on the DVR/NVR.

Check power, cables, and camera connections; ensure the DVR/NVR is functioning.

Download the latest firmware from the manufacturer's website and follow their instructions.

Check the internet connection, power supply, and network settings.

Inspect cameras and clean lenses every 3–6 months; check storage and firmware regularly.

Could be due to low frame rate, network issues, or insufficient storage.

Yes, extreme weather can damage cameras if they lack proper IP ratings.

Modern systems use encryption and password protection, but always secure your network.

Yes, if not properly secured; use strong passwords and update firmware regularly.

Change default passwords, enable encryption, and use a secure Wi-Fi network.

Laws vary by region; some areas prohibit audio recording without consent.

You may need permission in public areas or shared properties; check local laws.

Yes, but you must inform employees and comply with workplace privacy laws.

Avoid pointing cameras at private areas and use signage to inform people of surveillance.

Yes, if properly recorded and stored, but admissibility depends on local laws.

GDPR requires clear signage, secure storage, and limited data retention for CCTV in the EU.

Yes, if cameras point at their property; ensure cameras cover only your premises.

Yes, using a mobile app or web browser if the system is connected to the internet.

Internet connection, a compatible app, and correct network settings.

Check internet connectivity, app settings, or port forwarding on your router.

Port forwarding allows external devices to access your CCTV system over the internet.

Yes, using a multi-channel DVR/NVR or a monitoring app.

Dynamic Domain Name System (DDNS) assigns a fixed address to your CCTV for remote access.

A static IP is optional; DDNS can be used with a dynamic IP for remote access.

Yes, export footage and share via secure methods, following privacy laws.

Depends on the brand; popular apps include Hik-Connect, Dahua DMSS, and Reolink.

Yes, many IP cameras integrate with systems like Alexa, Google Home, or IFTTT.

Basic systems start at $100–$300; advanced setups with multiple cameras can cost $1,000+.

Wireless systems may cost more upfront but save on installation costs.

Typically $100–$500, depending on the number of cameras and complexity.

Some systems offer optional cloud storage subscriptions; local storage is usually free.

Possible costs include maintenance, storage upgrades, and electricity usage.

Choose a system with local storage, opt for DIY installation, and buy during sales.

Typically 5–10 years, depending on quality and environmental conditions.

Yes, if purchased from a reputable seller with a warranty.

Yes, they can enhance security appeal, potentially increasing property value.

Basic analog systems with 2–4 cameras start at around $100.

AI enables features like facial recognition, object detection, and behavior analysis.

Facial recognition identifies individuals by comparing faces to a database.

Automatic Number Plate Recognition (ANPR) identifies vehicle license plates.

Some advanced cameras with thermal imaging can detect heat or smoke.

Video analytics processes footage to detect events like intrusion or abandoned objects.

Yes, many systems can trigger alarms based on motion or analytics.

A 4K camera records at 3840x2160 resolution for ultra-clear footage.

Thermal cameras detect heat signatures, ideal for low-visibility conditions.

Yes, some cameras are solar-powered or can be paired with solar panels.

A camera that transmits video via Wi-Fi, eliminating the need for video cables.

Only if connected to a backup power source like a UPS or battery.

Some cameras with Starlight technology or white-light LEDs record color in low light.

They may deter crime but lack recording functionality.

Wireless cameras can be jammed, but wired systems are more secure.

Yes, if rated for low temperatures (check the camera's operating range).

Yes, but outdoor cameras need weatherproofing (e.g., IP66 rating).

Popular brands include Hikvision, Dahua, Reolink, and Lorex, depending on your needs.

Check the DVR/NVR status lights or app for recording indicators.

Wireless cameras are easier to relocate; wired cameras require cable adjustments.

Report to the police, use cloud backups if available, and install cameras in tamper-proof locations.