The ANNKE I81HN 4 MP PTZ surveillance camera is a powerful, versatile, and reliable monitoring solution that is optimally suited for a variety of applications. Its high-resolution image quality, extensive PTZ features, weatherproof design, and advanced infrared technology make it an ideal choice for demanding security tasks. The I81HN offers a resolution of 4 megapixels (2560 x 1440), characterized by high image quality and detail accuracy in recordings. The 1/3-CMOS image sensor with progressive scanning ensures precise and detailed video recordings, even in low light conditions. Equipped with a motorized varifocal lens ranging from 2.8 mm to 12 mm, the camera provides a horizontal field of view from 96.7° to 29.7°, a vertical field of view from 51.7° to 16.7°, and a diagonal field of view. The ability to remotely pan, tilt, and zoom (PTZ) the lens allows for flexible adjustment of the monitoring area, providing excellent coverage of large spaces. Thanks to the advanced EXIR 2.0 infrared technology, the camera offers a night vision range of up to 50 meters. This technology enhances infrared illumination while simultaneously reducing light pollution, resulting in clearer and more uniform night vision images. The I81HN surveillance camera supports efficient H.265+ compression technology, which reduces bandwidth and storage capacity without compromising image quality. The built-in microphone allows for the recording of ambient sounds, expanding the camera's monitoring capabilities. The system supports the filtering of background noise and records videos with clear audio. The ANNKE I81HN utilizes technologies such as DWDR (Digital Wide Dynamic Range), 3D DNR (Digital Noise Reduction), BLC (Backlight Compensation), and HLC (Highlight Compensation) for image enhancement.