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Dahua Outdoor Series 55-inch Digital Signage Display – LDH55-EAO400L

Dahua

Dahua Outdoor Series 55-inch Digital Signage Display – LDH55-EAO400L

SKU LDH55-EAO400L

The Dahua LDH55-EAO400L is a 55-inch wall-mounted LCD digital signage unit designed for outdoor environments. Featuring 2500 cd/m² brightness and IP55 protection, it supports 4K decoding and Android 11.0. SmartRooms Oman provides authorised supply and tender support for Omani institutions.

Screen size
55"
Resolution
4K UHD
System
Android 11

Pricing

Price on request in OMR

Include in your quote
WhatsApp
Written quote usually within one business day Download datasheet (PDF)

  • 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 × 2160 (4K UHD)
Display Color
10-bit (1.07 billion colours)
Brightness
2500 nits

Built-in system

Operating System
Android 11
Processor
ARM 4× Cortex-A55, 1.92 GHz
RAM
4 GB
Storage
32 GB

Audio

Speaker Output
2 × 5 W

Description

This industrial-grade display operates continuously for 24 hours, utilising an IPS panel with 3840 × 2160 resolution and 1200:1 contrast. The Android 11.0 operating system, paired with a quad-core 1.92 GHz CPU, 4 GB RAM, and 32 GB ROM, enables efficient content management. Intelligent split-screen layouts and B/S architecture allow remote control and unified platform management for dynamic installations.

Built for durability in the Sultanate of Oman’s climate, the metal-cased unit maintains performance between -20 °C and +45 °C with 2500 cd/m² typical brightness to combat glare. Connectivity includes HDMI 2.1, RJ-45 Ethernet, and USB ports. SmartRooms Oman covers all 11 governorates, from Musandam to Dhofar, handling hardware, delivery, and installation via partner teams.

Ideal for: Outdoor information displays for Omani schools, government ministries, and corporate campuses in Muscat, Sohar, and Salalah requiring high brightness and weather resistance.

  • Outdoor Durability – IP55 protection and metal casing ensure reliability in temperatures from -20 °C to +45 °C.
  • 4K Visual Clarity – 55-inch IPS panel delivers 3840 × 2160 resolution with 2500 cd/m² brightness and <3% reflectivity.
  • Android Management – Android 11.0 OS with quad-core CPU allows remote content scheduling and split-screen layouts.
  • Continuous Operation – Industrial-grade design supports 24/7 daily usage with fan-cooling and low power consumption.
  • Secure Connectivity – Features HDMI 2.1, 10/100/1000 Mbps Ethernet, USB 2.0/3.0, and encrypted platform data transmission.
  • Wall-Mounted Install – Supplied with a wall-mount bracket for fixed landscape orientation in public or commercial spaces.
  • Audio Output – Includes two 5 W built-in speakers and a 3.5 mm jack output for external audio systems.

Specifications

Manufacturer specifications · confirmed on your quotation

Display

Screen Size
55 inch
Resolution
3840 × 2160 (4K UHD)
Display Color
10-bit (1.07 billion colours)
Brightness
2500 nits
Backlight
Direct LED
Viewing Angle
178° (H) / 178° (V)

System

Operating System
Android 11
Processor
ARM 4× Cortex-A55, 1.92 GHz
RAM
4 GB
Storage
32 GB

Connectivity

HDMI Input
HDMI In × 1
USB Ports
USB 2.0 × 1, USB 3.0 × 1
Audio out
3.5 mm audio out
Ethernet
RJ45 × 1
Wi-Fi
None (customisable)
Bluetooth
None
SD card slot
microSD card slot × 1

Camera & audio

Speaker Output
2 × 5 W

Physical & warranty

Dimensions
1450 × 920 × 150 mm
Weight
118 kg
Shipping Dimensions
1620 × 1190 × 400 mm
Mounting Type
Wall mount
Mounting Orientation
Landscape
Material
Metal casing
Power Consumption
≤ 450 W
Operating Temperature
-20°C to 45°C
Operating Humidity
5% to 90% RH
Certifications
CE, ERP

Other

Key Features
24/7 industrial-grade panel, 4K decoding, multi-mode playback, split-screen layouts, time and location scheduling, operation reports, encrypted data transmission, remote management
Package Contents
Wall-mount bracket, User's manual, Legal and regulatory information
More Information
Aspect ratio: 16:9 | Panel technology: IPS | Response time: 8 ms | Contrast ratio: 1,200:1 | IP rating: IP55 | Storage conditions: -20 to 60 °C, 5% to 90% RH | Input voltage: 220 V AC, 50/60 Hz | Operating hours: 24/7

Complete the room

One quotation for the whole setup.

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

Downloads

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.
Can SmartRooms Oman supply the Dahua LDH55-EAO400L?

Yes, we are an authorised reseller supplying this unit across the Sultanate. We provide itemised quotations in Omani Rial with VAT shown, covering hardware, delivery, and installation for all 11 governorates.

Does this display support government tender documentation?

Yes, our team can provide datasheets and compliance statements for government tenders. We support quotations in Arabic, English, or both, ensuring all regulatory requirements are met for public sector projects.

What is the operating temperature range?

The device operates between -20 °C and +45 °C with 5%–90% non-condensing humidity. This range ensures reliable performance in Oman’s varying outdoor climates, from hot summers to cooler northern regions.

How is content managed on this signage?

It uses Android 11.0 with B/S architecture for remote management. Users can adjust split-screen layouts, schedule content by time and location, and utilise encrypted platform data transmission for secure program release.

What are the input and connection options?

Inputs include one HDMI 2.1 port, one RJ-45 Ethernet port, one USB 2.0, one USB 3.0, and a TF card slot up to 128 GB. It lacks Wi-Fi and Bluetooth by default but offers audio output via a 3.5 mm jack.

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