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Dahua Standard Series 55-inch LCD Digital Signage – LDH55-SAI400L (LDH55-SAI400L V1)

Dahua

Dahua Standard Series 55-inch LCD Digital Signage – LDH55-SAI400L

SKU LDH55-SAI400L V1

The Dahua LDH55-SAI400L is a 55-inch wall-mounted LCD digital signage unit designed for 24/7 industrial use. It features Android 11, 4K UHD resolution, and remote management capabilities. SmartRooms Oman supplies this display for commercial and government installations across the Sultanate.

Screen size
55"
Resolution
3840 (H) × 2160 (V)
System
Android 11
VESA
400× 400mm

Pricing

Price on request in OMR

Include in your quote
WhatsApp
Written quote usually within one business day

  • Written quotation in OMR

    Pricing, availability and warranty on one document.

  • Manufacturer warranty

    Terms confirmed on your quotation.

  • All 11 governorates

    Delivered from Muscat to Dhofar.

  • Quotations in Arabic & English

    Ask for Arabic, English or both.

The product, in detail.

Screen and picture

Screen Size
55 inch
Resolution
3840 (H) × 2160 (V)
Display Color
10 bit (8 bit + FRC), 1.07B colors
Brightness
500 cd/m² (typ.)

Built-in system

Operating System
Android 11.0
Processor
4 cores A55, 1.92 GHZ
RAM
4 GB
Storage
32 GB

Audio

Speaker Output
2 × 5 W

Description

This industrial-grade display is built for continuous operation in high-traffic environments. The 55-inch IPS/VA panel delivers 3840 × 2160 resolution with 500 cd/m² brightness, ensuring clear visibility in well-lit spaces. The metal casing and wide operating temperature range (0 °C to +40 °C) support reliable performance in Omani conditions.

Powered by Android 11.0 with a quad-core CPU, 4 GB RAM, and 32 GB ROM, the device handles 4K video decoding and complex split-screen layouts efficiently. B/S architecture allows centralized program management by time and location. Secure data transmission and multi-level permissions protect content integrity for sensitive deployments.

SmartRooms Oman acts as an authorised reseller, providing detailed quotations in Omani Rial with VAT clearly shown. Our team supports tender documentation with datasheets and compliance statements for government and private sector projects. Coverage extends to Muscat, Sohar, Salalah, Nizwa, and all 11 governorates, with delivery and installation handled by partner teams.

Ideal for: Digital information displays in Omani schools, ministries, hospitals, and corporate lobbies requiring 24/7 reliability.

  • Industrial Durability – Designed for 24/7 continuous operation with a metal casing and operating temperature range of 0 °C to +40 °C.
  • 4K UHD Display – 55-inch panel with 3840 × 2160 resolution, 500 cd/m² brightness, and 178° viewing angles for clear content visibility.
  • Android 11 Platform – Runs on Android 11.0 with a quad-core 1.92 GHz CPU, 4 GB RAM, and 32 GB ROM for smooth application performance.
  • Remote Management – Supports B/S architecture for centralized program scheduling, operation reports, and secure multi-level permission controls.
  • Connectivity Options – Includes HDMI 2.1 input, USB 2.0/3.0 ports, TF card slot, and optional external Wi-Fi module for flexible content delivery.
  • Wall Mount VESA – Fits standard 400×400mm wall mount brackets for secure installation in offices, schools, and public spaces.
  • Power Efficiency – Consumes 100 W typically with standby power ≤0.5 W, supporting energy-conscious operations in Omani facilities.
  • Audio Output – Features two 5 W built-in speakers and a 3.5 mm audio jack for clear sound transmission alongside visual content.

Specifications

Manufacturer specifications · confirmed on your quotation

Display

Screen Size
55 inch
Resolution
3840 (H) × 2160 (V)
Display Color
10 bit (8 bit + FRC), 1.07B colors
Brightness
500 cd/m² (typ.)
Backlight
DLED
Viewing Angle
178° (H); 178° (V)
Surface Protection
Haze 2%

System

Operating System
Android 11.0
Processor
4 cores A55, 1.92 GHZ
RAM
4 GB
Storage
32 GB

Connectivity

Additional Ports
1 × HDMI 2.1 (4K @60Hz); NO
Ethernet
1 × RJ–45 10/100/1000 Mbps self-adaptive Ethernet; port
Wi-Fi
Optional (External Wi-Fi module)
Bluetooth
NO
Connectivity Options
1 × USB 2.0 ports (type A); 1 × USB 3.0 ports (type A); 1 × TF card slot, up to 128 GB

Camera & audio

Speaker Output
2 × 5 W

Physical & warranty

Dimensions
1,222.4 mm × 694.8 mm × 58.1 mm (48.13" × 27.35" ×; 2.29") (without bracket)
Weight
15.5 kg (34.17 lb)
Shipping Dimensions
1357 mm × 150 mm × 853 mm (53.43" × 5.91" × 33.58")
Shipping Weight
22 kg (48.50 lb)
VESA
400× 400mm
Mounting Type
Wall mount
Mounting Orientation
Landscape/Portrait
Colour
Black
Material
Metal casing
Power Consumption
100 W (typ.), 140 W (max)
Power Standby
≤ 0.5 W
Operating Temperature
0 °C to +40 °C (+32 °F to +104 °F) (avoid direct sunlight)
Operating Humidity
10%–85% (RH), non-condensing
Certifications
CE EMC, CE LVD, CE ERP

Other

Package Contents
Wall-mount bracket, power cord, legal and regulatory; information, energy label, user's manual, remote control
More Information
Panel technology: IPS/VA | Aspect ratio: 16: 9 | Contrast ratio: IPS 1200:1(typ.) / VA 4000:1(typ.) | Response time: 8 ms (typ.) | Codecs: MPEG-3, WMA, WAV | Input voltage: 100–240 VAC, 50/60 Hz | Storage conditions: –20 °C to +60 °C (–4 °F to +140 °F)

Complete the room

One quotation for the whole setup.

Select what else the room needs — we will price it together, with delivery and installation.

Delivery & installation in Oman

Delivered to Muscat, Salalah, Sohar, Nizwa and every other governorate, with installation available through our partner teams. Lead time for this model is confirmed on your written quotation.

Stock held in Muscat for fast-moving models — ask for current availability.

Questions about ordering

How do I get a price?
Ask for a written quotation. Use Request pricing on any product page, WhatsApp +968 9664 1360 or email sales@smartrooms.me with the model or part number, the quantity, the delivery location in Oman and whether installation is needed. The quotation covers pricing, availability, warranty and installation options.
Do you deliver across Oman, and how long does it take?
Yes — to Muscat, Salalah, Sohar, Nizwa and the other governorates. Lead time depends on the model, quantity and configuration, so it is confirmed in writing on the quotation and again when your purchase order is acknowledged.
Do you install?
Yes. Installation is available across Oman through our partner installation teams. Its scope — mounting, cabling, positioning, commissioning and handover — is written into the quotation, so anything outside it is clear before the visit.
What warranty applies?
The manufacturer's warranty applies, with the terms confirmed on your quotation. The quotation states the warranty holder, period and service level, and we coordinate any claim with the manufacturer or its authorised service partner on your behalf.
Do you support government tenders?
Yes. We quote tender quantities and supply what a tender file needs: an itemised quotation addressed to your entity, manufacturer datasheets, technical compliance sheets, the delivery and installation scope, and a warranty statement.
Can I get the quotation in Arabic?
Yes — in Arabic, English or both. Manufacturer datasheets are usually published in English.
How to buy the Dahua LDH55-SAI400L in Oman?

SmartRooms Oman provides itemised quotations in Omani Rial with VAT shown. Contact our team for a quotation within 1 business day, covering hardware, delivery, and installation across all 11 governorates.

Does this display support 24/7 operation?

Yes, the Dahua LDH55-SAI400L is designed with an industrial-grade panel for continuous 24/7 operation, making it suitable for high-traffic commercial and government environments in Oman.

What is the resolution of the 55-inch panel?

The display features a 3840 × 2160 (4K UHD) resolution, delivering sharp text and detailed imagery for digital signage applications in offices and public spaces across the Sultanate.

Can SmartRooms Oman support government tenders?

Yes, our team provides tender support including datasheets and compliance statements for government tenders. We offer quotations in Arabic, English, or both to meet Omani procurement requirements.

What are the connectivity ports available?

The unit includes 1 × HDMI 2.1, 1 × USB 2.0, 1 × USB 3.0, a TF card slot (up to 128 GB), and an RJ-45 Ethernet port. External Wi-Fi is optional for wireless content updates.

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