1. Resolution: Provides 2 Megapixel (1920×1080) high-definition resolution for clear and detailed video footage.
2. Technology: Uses HDCVI (High Definition Composite Video Interface) technology, which transmits HD video over coaxial cables, offering high-quality images over long distances.
3. Lens: Fixed-focal lens (typically around 3.6mm) for a wide-angle view, suitable for general surveillance purposes.
4. IR LEDs: Built-in infrared LEDs for night vision capabilities, providing visibility in low-light or complete darkness (typically up to a certain distance, such as 20 meters).
5. Weatherproof: Designed to be weatherproof (IP67 rated), allowing for reliable outdoor use in various weather conditions.
6. Smart IR: Smart Infrared technology adjusts the intensity of the infrared LEDs to prevent overexposure of close objects in low-light conditions.
7. Durable Construction: Typically constructed from durable materials to withstand vandalism and harsh environments.

Functions:

1. Video Surveillance: Captures high-definition video footage for monitoring and surveillance purposes.
2. Day/Night Functionality: Automatic switching between color during the day and black-and-white in low-light conditions using infrared LEDs.
3. Remote Access: Can be integrated into network video recording (NVR) systems for remote viewing and playback of recorded footage.
4. Motion Detection: Supports motion detection functionality, triggering alerts or recording when motion is detected within the camera’s field of view.
5. Wide Dynamic Range (WDR): Enhances image quality in challenging lighting conditions by compensating for shadows and highlights.

Benefits and Advantages:

1. High Definition: Provides clear and detailed video footage, essential for identifying individuals and objects.
2. Cost-effective: Uses HDCVI technology, which allows for high-definition video transmission over existing coaxial cables, reducing installation costs.
3. Night Vision: IR LEDs and Smart IR technology ensure visibility in low-light conditions, extending surveillance capabilities around the clock.
4. Weatherproof Design: Suitable for outdoor use, offering durability and reliability in various weather conditions.
5. Easy Installation: Typically designed for easy installation and setup, minimizing deployment time.

Applications:

• Residential Security: Provides monitoring and security for homes and properties.
• Commercial Surveillance: Used in retail stores, offices, and warehouses for monitoring and security purposes.
• Public Areas: Deployed in public spaces, parking lots, and transportation hubs for surveillance and safety.
• Industrial Facilities: Monitors manufacturing plants and industrial sites for operational security and safety.

In summary, the Dahua 2MP HDCVI Fixed-focal Eyeball Camera HAC-T2A21 offers high-definition video quality, night vision capabilities, and durability, making it suitable for a wide range of surveillance applications in both indoor and outdoor environments. Its features ensure reliable performance and effective monitoring, enhancing overall security and situational awareness.