Product Introduction
Equipped with a 21.5-inch 1920×1080 FHD LCD display for local video preview and recording playback display
Supports touch-based operation with a dual control method combining the sidebar and physical screen buttons
Supports video input from a single USB (UVC) camera with plug-and-play functionality, automatic device recognition, and no need for manual driver installation.
Supports a single HDMI 2.0 video input; enables one-touch signal source switching between the camera and the HDMI port.
The USB camera supports two video formats: MJPG and YUYV; the MJPG format is decoded by the main control software before being routed to either the preview or recording path.
Supports AVC high-definition encoding, MP4 packaging, recording resolutions of 1920×1080 / 1280×720, and selectable bitrates from 1–8 Mbps
Supports scheduled segmented recording; segment durations can be selected from: no segmentation, or 3, 5, 10,15, or 30 minutes; also supports pausing and resuming recordings during recording.
Supports photo (JPEG) and video recording; all files are saved to an external USB drive, and users can browse, play, view information, delete, or export them.
Supports online adjustment of camera parameters: brightness, contrast, saturation, sharpness, hue, gamma, gain, white balance, exposure, backlight contrast, anti-glare, etc.; adjustments take effect immediately – no system restart required.
Supports autofocus, manual focus, optical zoom, digital zoom, and super zoom; also supports horizontal and vertical mirroring.
Supports cameras with lens control (serial port protocol); automatically identifies connection type.
Supports direct recording to and playback from an external USB flash drive; recorded video files are compatible with playback on devices such as PCs and mobile phones.
Supports firmware upgrade via USB flash drive mirroring
Product Parameters
model | product model | KC8401U |
display screen | size | 21.5 inches |
type | Touchscreen (a-Si TFT active-matrix LCD) | |
resolution ratio | 1920×1080（FHD） | |
Color gamut | 68% NTSC | |
Viewing angle | Horizontal: 89° (Typ) / Vertical: 89° (Typ) | |
touch control | Supports touch operations | |
video in | Channel 1 (USB Camera) | USB 2.0 USB flash drive-free UVC camera ×1 – automatic recognition; no manual driver installation required Supported formats: MJPG (Motion-JPEG), YUYV (YUY2) Preview: Supported resolution for photography and video recording: 3840*2160@30 fps 1920×1080 @30fps 1280×720 @30fps 800×600 @30fps 640×480 @30fps Supported resolution for photography and video recording: 1920×1080 @30fps 1280×720 @30fps 800×600 @30fps 640×480 @30fps
With audio: Supports Camera UAC audio channel (requires camera support) |
channel 2(HDMI) | 1x HDMI 2.0 port, with audio input Supported resolution: 3840×2160@30Hz、3840×2160@25Hz 2560×1440@60Hz 1920×1080@60Hz、1920×1080@50Hz、1920×1080@30Hz、 1920×1080@25Hz、1920×1080@24Hz 1080I60、1080I50 1280×720@60Hz、1280×720@50Hz、1280×720@30Hz | |
Signal source switching | Supports switching between the built-in camera and HDMI input. | |
Video Output | Local Display | Built-in 21.5-inch display output (LVDS dual-link, maximum resolution 1920×1080 @ 60Hz); synchronized with the display. |
Display / Record Zoom | When the input signal exceeds the display or recording resolution, the main controller automatically scales the signal to 1920×1080 or 1280×720 before outputting it for recording. | |
audio frequency | Audio Input | 1 × UVC camera; UAC audio (requires USB camera input – camera must support this feature) |
Audio output | Built-in speaker output ×1; system/replay volume adjustable | |
Audio-Video Codec | Video Compression Standard | AVC（MPEG-4 Part 10） |
code capacity | AVC video encoding, up to 1080P@60fps | |
HEVC / VP9 / AVS2 decoding | HEVC Main10 L6.1, VP9, AVS2: 10-bit decoding, up to 4K@30fps | |
AVC decoding | AVC L4.2: Decoding, up to 4K@30fps | |
Recording Resolution | 1920×1080 (default), 1280×720 | |
Video frame rate | Depending on the input source frame rate – maximum 30 fps | |
Video bitrate | 1, 2, 3, 4, 5, or 8 Mbps are available options; the default speed is 8 Mbps. | |
Bitstream Type | Single stream | |
Packaging format | MP4 | |
Audio compression standards | AAC | |
Photo Format | JPEG | |
Storage Method | External USB flash drive (capacity selectable); supports FAT32/NTFS; does not support local storage. | |
memory | Photo path | USB drive / photo / tooth_00000001.jpg |
Video recording path | USB drive / video / tooth_00000002.mp4 | |
Segmentation Rule | Continuous recording; recording durations of 3, 5, 10,15, or 30 minutes are available (default: 5 minutes); consecutive recording segments are distinguished by appending "_1", "_2", etc. to the main file name; pausing will also terminate the current segment. | |
Spatial Protection | Recording is prohibited when the remaining space falls below 5%; when the remaining space is between 5% and 10%, an alert is triggered, and the user may choose to proceed. | |
file management | Supports photo browsing, video playback, viewing of file metadata, deleting files, and exporting files to a computer. | |
network interface | RJ45 ×1 (10M / 100M / 1000M auto-negotiation) | |
peripheral interface | USB port | USB 2.0 ×2 (Camera / Storage) |
Power interface | DC terminal, DC 12V 3A | |
Physical buttons | 7 buttons, listed from top to bottom: Power, CH+ (previous), CH− (next / Write button), VOL+, VOL−, Menu, Input Source | |
Lens Control | Supports USB cameras with lens control (serial port protocol), featuring automatic device recognition and automatic reconnection upon connection loss. | |
operating system | Android 11 (videoProject recording app) | |
Software and Maintenance | Interface Language | Chinese / English |
firmware upgrade | Settings → Firmware Flashing; supports USB drive image flashing and online flashing | |
source | External adapter: DC 12V 3A | |
power dissipation | ≤ 36W | |
other | working temperature | -10℃ ～ 79℃ |
Work environment humidity | 10% ～ 90% | |
Equipment dimensions | 515 mm (length) × 325 mm (width) × 62 mm (thickness) | |
weight | 3.2Kg |
+8613798538021