The Dahua DHI-LM55-S400 is a 55-inch Ultra HD (4K) commercial LED monitor designed for professional surveillance, control rooms, digital signage, conference rooms, retail environments, and business applications. Built with an industrial-grade LCD panel, this display supports continuous 24/7 operation, delivering exceptional image clarity, reliable performance, and long service life.
Featuring 3840 × 2160 Ultra HD resolution, a 450 cd/m² brightness level, and 1.07 billion display colours, the LM55-S400 produces sharp, vibrant, and lifelike images. The monitor incorporates advanced 3D COMB filtering and 3D noise reduction technologies to enhance video quality while minimizing image distortion.
Its 178° ultra-wide viewing angle ensures excellent visibility from virtually any position, making it ideal for surveillance monitoring, security control centres, public information displays, corporate meeting rooms, and digital advertising applications.
With multiple connectivity options including HDMI 2.0, DisplayPort, VGA, USB multimedia, Audio, and RS232, the LM55-S400 integrates seamlessly into professional AV and security systems.
Key Features
- 55-inch 4K Ultra HD Professional LED Monitor
- 3840 × 2160 UHD Resolution
- Industrial-Grade LCD Panel for 24/7 Continuous Operation
- 450 cd/m² High Brightness
- 1000:1 Contrast Ratio
- 1.07 Billion (10-bit) Display Colours
- 178° Ultra-Wide Viewing Angle
- 6ms Fast Response Time
- Built-in 3D COMB Filter
- Advanced 3D Noise Reduction
- Tamper-Resistant Metal Housing
- High-Fidelity Digital Image Processing
- Built-in Dual 5W Speakers
- Ultra-Quiet Internal Power Supply
- Low Power Consumption
- Professional Thermal Design for Extended Lifespan
- Supports HDMI, DisplayPort, VGA, USB Multimedia, Audio, and RS232
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