Feature: Sensor: 1/1.8 IMX377 Effective pixels: 12 million Resolution: 3840*2160@30FPS 1920*1080@60FPS Output interface: HDMI Pixel size: 1.55UM*1.55UM Basic function: HDMI 4K output with simple measurement cross hair Picture quality adjustment: exposure, color Camera functions: horizontal/vertical mirroring, picture freezing, taking pictures, and video recording Grid lines: horizontal lines, vertical lines, and center scale lines can be customized in color and thickness Power supply: DC-12V/1A 1. Turn on the DC-12V power supply, connect to the monitor, and wait for the screen to appear on the monitor 2. Tap the main function menu button on the product 3. Press the up and down keys to select the setting function 4. Press OK to confirm the desired function 5. Press the left and right keys to adjust the required parameters 6. Press the main function menu key to return to the setting menu 7. When there is no main function menu on the screen, directly press the right button to take a photo and save the photo to the TF card 8. When there is no main function menu on the screen, first press the left button, then press the right button to record, and then press the right button to stop Video, save the video to TF card 9. When there is no main function menu on the screen, press the left button twice, then press the up and down buttons to preview pictures and videos 180X C-MOUNT Lens Working distance: 95mm Zoom c-mount Lens 0.5X C-mount adapter Zoom ratios: 6.5:1 Objective Magnification Power by 0.7 - 4.5X(about 10 - 180X on the display) Size: 180mm(L) * 50mm(DIA) Working distance:145-100mm 300X C-MOUNT Lens Working distance: 95mm Zoom c-mount Lens 1X C-mount adapter Zoom ratios: 6.5:1 Objective Magnification Power by 0.7 - 4.5X(about 10 - 300X on the display) Size: 248mm(L) * 50mm(DIA) Working distance:110-100mm 100X C-MOUNT Lens Magnification Power by 0.12 - 2X (about 8X - 100X on the display) Work distance: 100mm Visual field :2.4mm-32mm Size: 115mm(L) * 40mm(DIA) Weight: 210g Working distance:30-280mm 120X C-MOUNT Lens Zoom ratio: 15: 1 Magnification Power by :1X~120X Material vision: 2.