Dahua · CCTV Monitors55-Inch 4K UHD Commercial CCTV Monitor
DHI-LM55-S400-SE-V1 — Create a larger surveillance display with a 55-inch 4K panel in a metal housing. HDMI 2.0 and DisplayPort 1.2a inputs support compatible high-resolution sources, while 24/7 operation suits continuous commercial viewing.
Key features
Large 4K workspace
A 55-inch panel suits larger multi-camera layouts at an appropriate viewing distance.
HDMI and DisplayPort
Connect a compatible recorder or workstation using the required signal standard.
Metal commercial housing
Designed as a commercial display rather than a consumer smart TV.
Continuous operation
24/7 duty supports always-on monitoring within the specified environment.
Applications & installation
For a control room or larger monitoring area with suitable viewing distance and structural support. At 25.2 kg, this display needs a mount and wall construction designed for its size and weight. It is a commercial monitor; Android apps or smart-TV services are not specified.
Technical Specifications
| Model |
DHI-LM55-S400-SE-V1 |
| Panel size |
55 inches |
| Native resolution |
3840 × 2160, 4K UHD |
| Refresh rate |
60 Hz |
| Brightness |
450 cd/m² |
| Contrast |
5500:1 |
| Response time |
6 ms |
| Inputs |
2 × HDMI 2.0, DisplayPort 1.2a and VGA |
| Other connections |
USB, audio and RS-232 input/output |
| Speakers |
2 × 5 W |
| Operating duty |
24/7 |
| Housing |
Metal |
| VESA pattern |
400 × 400 mm |
| Net weight |
25.2 kg |
| Power consumption |
Below 170 W |
| Warranty |
36 months — subject to warranty terms |
Compatible options & add-ons
Optional items are sold separately. Select the components needed for your installation; mounting parts may need to be used together.
Frequently asked questions
Can I install Android TV apps?
Android or smart-TV application support is not specified. Connect an external supported video source for content.
What mount should I use?
Choose a 400 × 400 mm VESA mount rated for at least the monitor's 25.2 kg weight and the intended installation. Check fixing details and wall structure.
Downloads
Manufacturer documentation: the datasheet identifies the product or stated product family; general guides cover the applicable equipment type. Confirm model-specific instructions before installation.
