Product SKU: DHI-LM50-F400
Product Overview
The Dahua DHI-LM50-F400 is a 50-inch 4K UHD LED monitor designed for CCTV viewing, security desks and other installations that need a large display running for extended periods. Its 3840 × 2160 resolution gives operators a detailed workspace for live camera layouts, playback and general video review, while the stated 24/7 operating capability makes it better suited to continuous monitoring than a screen intended only for occasional use. The panel combines a 178-degree horizontal and vertical viewing angle, 8ms response time, 60Hz refresh rate and 1.07G colour support. Two HDMI inputs, VGA, USB, audio input and RS232 connectivity provide practical flexibility for recorders and other compatible sources. Built-in dual 7W speakers reduce the need for separate desktop audio, and the supplied pedestal, remote control and power cable support straightforward installation.
Key Capabilities
50-Inch 4K Viewing Area
The 3840 × 2160 UHD panel provides a large, detailed workspace for live CCTV layouts and recorded video. This is useful when operators need to monitor several channels or inspect finer image detail without relying on a smaller desktop display.
Continuous 24/7 Operation
The monitor is specified for continuous operation and uses a professional thermal design intended to support extended running hours. This makes it a stronger fit for security desks and monitoring areas where the display may remain active throughout the day and night.
Wide Shared Viewing
A 178-degree horizontal and vertical viewing angle helps maintain visibility when the screen is viewed from the side. This matters in reception areas, control rooms and shared workspaces where more than one person may need to follow the display.
Flexible Recorder Connectivity
One HDMI 2.0 input, one HDMI 1.4 input and one VGA input provide practical options for compatible NVRs, computers and other video sources. USB 2.0, audio input and RS232 connections add further installation flexibility.
Integrated Audio
Two built-in 7W speakers provide basic audio without requiring separate desktop speakers. This is useful when reviewing footage from a compatible recorder or source that supplies audio alongside the video signal.
Best For
- Dedicated CCTV Monitoring: Suitable for security desks that need a large 4K screen operating for extended periods.
- Retail and Reception Areas: Useful where staff need to view live camera feeds from several positions around a counter or workspace.
- Warehouse and Office Surveillance: Provides a larger display for reviewing entrances, loading areas, corridors and shared site coverage.
- Recorder Playback and Review: Well suited to compatible NVR or computer outputs using HDMI or VGA connections.
Why Choose the DHI-LM50-F400
The DHI-LM50-F400 is a practical choice when screen size, 4K detail and long operating hours matter more than decorative consumer features. Compared with a smaller or lower-resolution display, its 50-inch UHD panel gives operators more room to view multi-camera layouts and inspect recorded footage without constantly changing windows. The wide viewing angle also helps in shared monitoring areas where several people may need to see the display from different positions. Its stated 24/7 operation, thermal design, dual HDMI connectivity, VGA input and built-in speakers make it a well-rounded option for dedicated CCTV use. Available through Security Wholesalers, this model suits buyers seeking a purpose-focused monitor with clear specifications and flexible mounting or pedestal placement.
Buyer Decision Tips
Buyer Tip: To benefit from the monitor’s 4K panel, confirm that the connected recorder or computer can output 3840 × 2160 through a compatible connection and that its display settings are configured correctly.
Buyer Tip: The monitor has a 200 × 200mm VESA pattern and weighs 10.4kg without packaging. A hanging bracket is optional, so confirm suitable wall-mount hardware separately when the supplied pedestal will not be used.
Key Features & Technical Specifications
| Model | DHI-LM50-F400 |
| Display | 50-inch UHD LED monitor |
| Resolution | 3840 × 2160 UHD with a 16:9 aspect ratio |
| Backlight | LED |
| Brightness | 300cd/m² |
| Contrast Ratio | 5000:1 |
| Display Colour | 1.07G colours using 8-bit plus FRC processing |
| Viewing Angle | 178° horizontal and 178° vertical |
| Response and Refresh | 8ms response time and 60Hz refresh rate |
| Video Inputs | 1 × HDMI 2.0, 1 × HDMI 1.4 and 1 × VGA |
| Additional Connections | 1 × USB 2.0, 1 × audio input and 1 × RS232 |
| Built-In Speakers | 2 × 7W speakers |
| Power Supply | AC 100–240V, 2.5A, 50/60Hz |
| Power Consumption | 110W standard and no more than 0.5W in standby |
| VESA Mount | 200 × 200mm |
| Dimensions Without Base | 1113.04 × 649 × 87.2mm |
| Bezel Width | 8.24mm top, left and right; 22.62mm bottom |
| Weight | 10.4kg net and 13.8kg gross |
| Operating Environment | 0°C to 40°C and 10% to 80% relative humidity |
| Standard Accessories | Power cable, remote control and pedestal; hanging bracket optional; CE and FCC certifications |
Ideal Use Cases
CCTV Control Desks
Use the large 4K display where operators need a clear overview of several live channels or regular access to recorded footage.
Retail Monitoring
Suitable behind counters or in back offices where staff need to review shopfront, register, entrance or aisle cameras.
Warehouse Surveillance
Provides a larger shared screen for monitoring loading docks, entry points, storage zones and general operational areas.
Reception and Office Areas
The wide viewing angle supports shared visibility where reception staff or supervisors may view the screen from different positions.
Footage Review Rooms
Useful for reviewing incidents, training staff or presenting recorded video on a larger UHD panel with integrated sound.
Choosing the Right Model
- Choose this model if: You need a 50-inch 4K monitor with stated 24/7 operation, wide viewing angles, HDMI and VGA connectivity, built-in speakers and VESA mounting support.
- Choose a different model if: Your installation requires a different screen size, additional connection types, a higher brightness specification or operation outside the stated temperature and humidity range.
FAQs
- Is the Dahua DHI-LM50-F400 suitable for continuous CCTV monitoring?
Yes. The DHI-LM50-F400 is specified for continuous 24/7 operation, making it suitable for surveillance desks, reception areas and other locations where a monitor may remain active for extended periods. Its professional thermal design is intended to support long operating hours, while the 50-inch 4K panel gives operators a large viewing area for live or recorded video. - What resolution does the DHI-LM50-F400 display?
The DHI-LM50-F400 uses a 3840 × 2160 UHD panel with a 16:9 aspect ratio. This provides four times the pixel count of Full HD, which is useful when viewing detailed camera images or arranging several CCTV channels on one screen. The displayed detail still depends on the resolution and output settings of the connected recorder or video source. - Which inputs are available on the DHI-LM50-F400?
The monitor provides one HDMI 2.0 input, one HDMI 1.4 input and one VGA input for compatible video sources. It also includes one USB 2.0 connection, one audio input and one RS232 connection. Before installation, check the output type and resolution settings of the recorder, computer or other source that will be connected to the display. - Does the DHI-LM50-F400 have built-in speakers?
Yes. The DHI-LM50-F400 includes two built-in 7W speakers. This is useful when the connected recorder or video source supplies audio and the installation needs basic sound without separate desktop speakers. The monitor also provides an audio input, so the audio path should be matched to the selected video source and connection method during setup. - Can the DHI-LM50-F400 be wall mounted?
Yes. The DHI-LM50-F400 has a 200 × 200mm VESA mounting pattern, and a hanging bracket is listed as an optional accessory. The supplied pedestal can be used for desktop or console placement. For wall mounting, select hardware rated for the monitor’s 10.4kg net weight and confirm the mounting surface is suitable before installation. - What viewing angle does the DHI-LM50-F400 provide?
The panel provides a 178-degree horizontal and 178-degree vertical viewing angle. This is useful in monitoring rooms, retail counters and shared work areas where more than one person may need to see the screen from different positions. For the clearest detail, the display should still be installed at a practical height and angle relative to the main operator. - What accessories are supplied with the DHI-LM50-F400?
The standard accessory list includes a power cable, remote control and pedestal. A hanging bracket is listed as optional rather than standard. When ordering through Security Wholesalers, confirm whether separate wall-mount hardware is required for the planned installation, particularly when the monitor will not be used on its supplied pedestal. - What operating conditions should be considered before installation?
The DHI-LM50-F400 is specified for operating temperatures from 0°C to 40°C and relative humidity from 10% to 80%. Standard power consumption is 110W, with standby consumption of no more than 0.5W. Allow suitable ventilation around the monitor and check that the installation location can support its 10.4kg net weight and 1113.04 × 649 × 87.2mm body dimensions without the base.
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