The HIKVISION DS-2CD3643G2-IZSU (2.7-13.5 mm) (B) is a professional bullet IP camera designed for comprehensive surveillance applications. This 4-megapixel camera delivers high-resolution videos with a resolution of 2688 × 1520 pixels, providing exceptional image clarity and detail accuracy for security monitoring. The camera features a motorized varifocal lens with a focal length range of 2.7-13.5 mm, allowing for optical zoom functions and flexible adjustments of the field of view from 105° to 32.5°. Equipped with Smart-IR technology, this camera automatically adjusts the infrared lighting up to 30 meters to ensure clear night surveillance without overexposure. The camera integrates advanced video analytics, including intrusion detection, line crossing detection, and area entry/exit detection for intelligent alerting. With an IP67 weatherproof rating, this camera operates reliably under various environmental conditions ranging from -30°C to 60°C. The camera supports H.265+ compression technology for efficient bandwidth usage and storage optimization. Additional features include 3D digital noise reduction, a 120 dB wide dynamic range for challenging lighting conditions, and dual video stream output. The robust metal housing measures approximately 105 mm in diameter and 323 mm in length, with integrated cable management for professional installation. This surveillance solution is compatible with leading video management systems and supports Power over Ethernet (PoE) for simplified deployment. The vandal-proof design and IK10 impact resistance rating ensure durability in demanding security environments.