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28" 4K Ultra-HD Resolution Carry-on Broadcast Director Monitor for CCTV Monitoring & Making Movies 4K280-9HSD-CO




Screen Size:  28"  
Resolution:   3840×2160 pixels
Aspect ratio: 16:9
Brightness:   300cd/m²


SDI, HDMIx4, DVI, VGA, Audio(L/R)


SDI, Stereo Headphone, Speaker(built-in)












SEETEC Professional Broadcast LCD Monitor has been widely used in TV news production, broadcasting house, TV broadcasting truck and other fields. Since this series is working with other adjacent professional equipments, therefore, high stability, high reliability and electromagnetic compatibility are very important to make sure the whole system work smoothly.
The full metal case not only makes the product more solid and durable, but also solves the problem of heat dissipation. Full metal case improves the anti-interference capability! More Stablity and Reliability.


More Auxiliary Functions
More professional functions assist users to accurately monitor when shooting, making and playing movies/ videos.

blackmagic atem mini




Quad Split LCD Display
SEETEC new 4K280-9HSD-CO is the professional cost-effective Quad-split LCD Monitors with 4 x HDMI inputs, provides a new display solution for a wide range of applications that require ultrahigh resolution contents.



High Efficiency OSD Operation Design
You can fast and direct switching signal, and F1-F4 user-definable buttons, witch can be customized as shortcut function, such as peaking, check field, display rotate, center marker, safe marker etc.



Rich Interfaces
Multiple inputs meet the best need of various professional display solutions.


4K238-9HSD-CO- 238-4K-camera-top-monitor




  • Innovative Design Portable Aviation Aluminum Case
    Specifically Design for Field Production

  • 4k-ultra-hd-monitor


  • 4k-ultra-monitor

  • Unique Design for High Efficency
    Time and Costs are important for film crews. This becomes more obvious if there are frequent scene changes during production. The 4K280-9HSD-CO is based on how monitors are being used by film crews. Whether packing down or setting up a simplified design makes this monitor ready for use quickly. There are no complex setup processes to go through.


  • Collapsable Sunshade
    Design for easier viewing in bright environments.

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1. Wide view angle, 4K resolution (3840 x 2160), bright, colorful display
2. HDMIX4, 3G-SDI, DVI, VGA, Audio(L/R) inputs and 3G-SDI loop-through output
3. Special Features:
* Quad Split Display (1P, 2P LR, 2P TB, 2P PIP, 4P)
* Peaking Focus Assist
* False Color
* x1.33, x1.5, x1.8, x2.0
* Image Flip (0°, 90°, 180°, 270°)
* Check Field (Red, Green, Blue, Mono)
* Image Freeze
* Zoom
* pixel to Pixel
* Center Marker
* Grid Marker (3X3, 6X6, 9X9)
* Safety Marker (80%, 85%, 90%, 93%, 96%, 4:3, 2.39:1, 2.35:1, 1.85:1)
* Line Color (Red, Green, Blue, White)

4. Monitoring via front panel 3.5mm stereo headphone jack and built-in speaker
5. Built-in LED tally indicators (Red, Green, Yellow)

blackmagic atem mini

  • Quad View
    Support 4x 4K HDMI, 3G-SDI, VGA, DVI input


Dual View
Meet your different screen display needs.



Input Swap
To exchange the input signal of the split screen.


Peaking Focus Assist
The Peaking Filter is used to aid the camera operator in obtaining the sharpest possible picture. When activated, the internal processor will display a colored highlight on the screen where sharp edges appear. It's shows white highlight over parts of the image in focus.


Check Field
Check Field is an assistant function to adjust camera color settings. Under the check field mode, you can use red, green, blue or mono pixels to generate the image, because hue and saturation can be adjusted more quickly and accurately in this environment.


Pixel to Pixel
Enable the filmmaker to check the image from the 1:1 signal source without scaling. This feature is essential for capturing optimum detail.


Center Marker & Safe Marker
Safe Mark for View Finding and Composition (80%, 85%, 90%, 93%, 96%, 2.35:1). You can switch the Mark color between Red, Green, Blue and White according to different tone of the subject.


Image Flip
The 90°, 180°, 270°of the image around flip.


Display Spec.
 Model  4K280-9HSD-CO
 Screen Size  28"
 Color Depth  1.073G (10 bits)
 Resolution  3840×2160 pixels
 Pixel Pitch  0.16 (H) × 0.16 (V) mm
 Aspect Ratio  16:9
 Brightness  300cd/m² 
 Contrast Ratio  1000:1
 Backlight  LED
 Viewing Angle  170°(H) / 160°(V)
 4 X HDMI  HDMI (HDMI2.0x1 support 4K 60HZ; HDMI1.4x3 support 4K 30HZ)
 2 X RCA  Audio(L/R)
 1 X Tally  Tally
 Audio Out  Stereo Headphone, Speaker
SDI Support Format
1080p(60/59.94/50/30/29.97/25/24/24sF/23.98/ 23.98sF)
HDMI Support Format
HDMI 2.0: 4K UHD 2160p (23.98/24/25/29.97/30/50/59.94/60)
HDMI 1.4: 4K UHD 2160p (23.98/24/25/29.97/30)
720p (60/59.94/50/30/29/25/24/23.98)
1080p (60/59.94/50/30/29.97/25/24/24sF/23.98/ 23.98sF)
 Input Voltage  DC12~24V (XLR)
 Power Consumption  ≤45W
 Working Temperature  -10°C~50°C
 Storage Temperature  -20°C~60°C
 Unit Size  731L×410H×39D (mm) (W/O Suitcase) / 780L×470H×250D (mm) (W/ Suitcase)
 Unit Weight  21.7kg (with Suitcase)   
 Outer Carton Qty  1
 Outer Carton Size  840*300*530 (mm)
 Gross Weight  24kgs
Advanced Features
* Quad Split Display (1P, 2P LR, 2P TB, 2P PIP, 4P)
* Peaking Focus Assist
* False Color
* Anamorphic(x1.33, x1.5, x1.8, x2.0)
* Display Rotate (0°, 90°, 180°, 270°)
* Check Field (Red, Green, Blue, Mono)
* Image Freeze
* Zoom
* Pixel to Pixel
* Center Marker
* Grid Marker (3X3, 6X6, 9X9)
* Safety Marker (80%, 85%, 90%, 93%, 96%, 4:3, 2.39:1, 2.35:1, 1.85:1)
* Line Color (Red, Green, Blue, White)
* Color Temperature Adjustment
* Built-in LED tally indicators (Red, Green, Yellow)


Dimensions (Unit: mm)

Standard Package Includes:
Mini HDMI Cable
1× V Battery Plate
1× 5A 
Power Adapter
1× Tally Kit
1× Sunshade
1× Operation Manual