CCTV System

ఎలా ఎంచుకోవాలి

• Start with IP or analog. New builds usually suit network cameras with an NVR; existing coax cabling suits a DVR.
• Pick the camera form factor. Domes suit indoor and sheltered spots, bullets suit outdoor perimeters, vandal domes suit tamper-prone areas, and box cameras let you choose the lens.
• Match resolution to the job. 4 MP is the most common choice; higher resolution needs more bandwidth and disk space.
• Size the recorder. Choose a channel count with headroom, check PoE ports on NVRs, and plan HDD capacity for your retention period.