Specification:Model:Camera with HDMI outputSensor:4 million pixelsEffective Pixels: 2560H*1440VOutput:HDMI portOutput:U disk storage portPicture Video Storage:SupportData Bits:12bitpixel size:2.0m*2.0mFrame rate:30F/SDefinition:1200TV linesScanning mode:Line by lineShutter Type:Electronic ShutterDynamic Range:90dBSignal-to-noise ratio:55dBSensitivity:2.0 V/lux-sec (550nm)Exposure:Manual Exposure,automatic exposureWhite balance:automatic / manualOutput resolution:1920*1080 /2560*1440 (2k)Lens Mount:C/CSSize:53*53*45mmPower supply: 12V/1AOSD: English/ChineseMenu features:1. Two USB ports (one for USB mouse, one for U disk)2. Save the picture to the U disk, or browse the pictures and videos in the U disk3. Crosshair: 1-12 groups, optional colors, adjustable size4. Freeze function: two split screen, four split screen5. Scale: The number of scale pixels in each interval can be adjusted arbitrarily6. Measurement function: the distance