Security Cameras – How to Choose the Right Surveillance System

IP cameras vs analog cameras

IP cameras transmit video over the network and offer higher resolution (Full HD, 2K, 4K), remote access capability, and advanced features like motion detection. Analog cameras are more affordable but require a DVR for recording and have lower resolution. For modern needs, IP technology provides better value for money.

Resolution and image quality

1080p (2MP) resolution is the minimum for facial recognition at distances up to 5 meters. Cameras with 4MP and above allow digital zoom without loss of detail. For parking areas and larger premises, a minimum resolution of 5MP is recommended to read license plates clearly.

Night vision and infrared technology

IR LED lights enable recording in complete darkness at distances of 20-30 meters with standard models. Advanced cameras use starlight sensors that record in color even in very low light conditions. Check the camera's IR range relative to the area you want to cover.

Indoor vs outdoor cameras

Outdoor cameras must have IP66 or IP67 protection against dust and water, plus resistance to temperatures from -20°C to +50°C. Indoor cameras are more compact and discreet, often with two-way audio for monitoring children or elderly family members. Dome cameras suit both environments as they make it harder to determine the recording direction.

Wireless cameras and WiFi connectivity

WiFi cameras eliminate the need for cables but require a stable signal – ideally within 10 meters of the router. Watch out for battery consumption in completely wireless models. For critical locations, wired connection is more reliable as it doesn't depend on WiFi signal strength.

Recording storage and cloud options

Local storage on microSD card (128GB-256GB) covers 7-14 days of continuous Full HD recording. NVR systems enable centralized storage for multiple cameras with the ability to expand to several terabytes. Cloud services offer access to recordings from any device but require a monthly subscription.

Advanced features and AI detection

Modern cameras use AI to distinguish between people, vehicles, and animals – reducing false alarms from tree movement or shadows. Line crossing and zone intrusion detection enable more precise notifications. Facial recognition is becoming standard in mid-range models for identifying known individuals.

Selection and Pricing

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