Features:

1. 4 Megapixel Resolution: Offers high-resolution video capture for clear and detailed images.
2. Dual-Lens Design (LU/SL): Provides both wide-angle and telephoto lenses in one unit, offering flexibility in surveillance coverage.
3. Smart Detection: Equipped with intelligent features such as motion detection, intrusion detection, and line crossing detection.
4. IR Illumination: Built-in infrared LEDs for night vision, enabling surveillance in low-light or nighttime conditions.
5. Weatherproof Housing: Designed to withstand outdoor environments with its weatherproof and vandal-resistant housing.
6. Power over Ethernet (PoE): Simplifies installation by allowing power and data transmission over a single Ethernet cable.
7. H.265+ Compression: Efficient video compression technology that reduces bandwidth and storage requirements without sacrificing video quality.
8. Smart IR Technology: Adjusts the intensity of the infrared LEDs based on the distance to the object, preventing overexposure of nearby objects.

Functions:

1. Surveillance: Captures high-resolution video footage for security and surveillance purposes.
2. Motion Detection: Alerts users when motion is detected within the camera’s field of view.
3. Intrusion Detection: Detects unauthorized entry into a predefined area and triggers alarms.
4. Line Crossing Detection: Notifies users when someone crosses a virtual line set by the user.
5. Night Vision: Provides clear video footage even in low-light or nighttime conditions.
6. Remote Access: Allows users to view live or recorded footage remotely via a smartphone, tablet, or computer.
7. Video Analytics: Offers advanced video analytics capabilities for more accurate detection and analysis of events.

Benefits and Advantages:

1. High-Quality Imaging: The 4-megapixel resolution ensures sharp and clear images for enhanced surveillance.
2. Flexible Coverage: The dual-lens design provides versatility in surveillance coverage, catering to various monitoring needs.
3. Enhanced Security: Smart detection features help in the early detection of potential security threats, improving overall security effectiveness.
4. 24/7 Surveillance: With IR illumination and night vision capabilities, the camera ensures round-the-clock surveillance, even in low-light conditions.
5. Cost-Efficiency: H.265+ compression technology reduces bandwidth and storage requirements, resulting in lower overall costs for storage and network infrastructure.
6. Easy Installation: Power over Ethernet (PoE) simplifies installation by eliminating the need for separate power cables.
7. Durable Design: The weatherproof and vandal-resistant housing ensures durability and longevity, making it suitable for outdoor use in various environments.

Overall, the DS-2CD2047G2-LU/SL 4MP camera offers a comprehensive surveillance solution with advanced features, functions, and benefits tailored to meet the security needs of various applications.