4 million star level 23x infrared spherical network camera; Starlight: Supports pixels: 4 million, sensor target surface: 1/2.7 ", focal length: 5-15mm, magnification: 23X, fill light mode: infrared fill light, fill light distance: 100 meters, infrared fill light; Facial detection: supports three preferred modes for facial capture: effect priority, speed priority, and cycle optimization. Perimeter defense: supports boundary detection, area intrusion, entry into the area, and exit from the area; Support classification detection and capture of motor vehicles, non motor vehicles, and pedestrian targets, as well as statistics on the number of deployed personnel: pedestrian flow statistics: support for total, incoming, and outgoing personnel statistics, support for three-level alarms for stranded personnel, and support for zero counting of personnel; Personnel density detection: supports three-level alarm automatic tracking of personnel density: supports classification tracking of motor vehicles, non motor vehicles, and pedestrian targets in the screen, and automatically returns to the initial position after reaching the preset tracking time. Horizontal range: 360 ° continuous rotation, vertical range: -15 °~90 °. SD card interface: Micro SD slot * 1, maximum support 512GB audio input: 1 input audio output: 1 output alarm input: 2 input alarm output: 1 output serial port: 1 RS485 serial port (protection level 6000V). Network port: RJ45 10M/100M adaptive Ethernet power supply: DC12V ± 25%; POE (IEEE802.3at) power interface: 5.5mm round hole interface Waterproof and dustproof: IP66;