Dahua LDV55-SAI400L · Price in Qatar

Name: Dahua LDV55-SAI400L 55-inch Indoor Vertical LCD Digital Signage
Brand: Dahua
SKU: dahua-ldv55-sai400l
Availability: InStock

Overview

The Dahua LDV55-SAI400L is a 55-inch indoor vertical LCD for digital signage. Its 2160 × 3840 portrait panel decodes up to 4K, runs Android 11 for 24/7 operation, and is rated for continuous use. Playlists follow time and location rules and are managed remotely from a central platform. Gigabit Ethernet, HDMI 2.1 input and 2 × 5 W speakers suit reception areas, corridors and waiting rooms in offices, clinics and schools across Qatar. Request a quote.

What the Dahua LDV55-SAI400L is built to do

The Dahua LDV55-SAI400L is a 55-inch LCD designed to stand upright and show digital signage, wayfinding boards, menus and announcements inside buildings. Its 9:16 panel uses a 2160 × 3840 resolution and an ELED backlight, with a typical brightness of 320 cd/m² and a 178° viewing angle both horizontally and vertically. The surface treatment has 1% haze, which reduces reflections in lobbies with overhead lighting.

Inside the unit is a quad-core A55 processor running at 1.92 GHz, with 4 GB of RAM, 32 GB of storage and Android 11.0. It decodes H.265 and VP9 up to 2160p at 60 fps, so 4K video files can play without an external media player. The panel is built around an industrial-grade design, which matters where screens run for long periods.

Scheduling, permissions and remote control

The unit is managed through a browser-based platform using B/S architecture. Administrators can schedule content by time and by location, release it in several modes and review operation reports. Each program release can pass through multi-level permission review, which suits ministries and hospitals where one team prepares messages and another approves them. Data sent to the platform is encrypted, and every terminal can be protected with its own password.

Where it fits in Qatar

Government reception in Msheireb or Doha: a portrait screen beside the visitor desk showing service guides and queue information, with content approved by the communications team before it goes live.
Private school corridor in Al Sadd or Al Rayyan: timetables, event notices and achievements that change by building or floor, managed from the administration office.
Hotel or serviced apartment lobby in The Pearl or West Bay: wayfinding, dining and tour information placed in an air-conditioned area, away from direct sunlight.

What to plan before ordering

Choose the mounting position before the unit arrives. Without its bracket the panel measures 1,850.0 mm × 743.6 mm × 92.3 mm, and with the bracket it measures 1,900.0 mm × 750.0 mm × 460.0 mm. It weighs 66 kg net and 73 kg gross, so plan for at least two people to move and lift it. The operating range is 0 °C to +40 °C, direct sunlight should be avoided, and humidity must stay between 10% and 85% without condensation. In Qatar's summer, that means a conditioned indoor space rather than an open entrance or a window-facing wall.

The power input is 100–240 VAC at 50/60 Hz, with typical consumption of 80 W and a maximum of 90 W. Standby draw is 0.5 W or less. The package includes a bracket, power cord and remote control. The source lists CE EMC, CE LVD and CE ERP certifications. Confirm the plug type with the team before ordering so it matches your BS 1363 sockets.

Ordering from SmartRooms Qatar

SmartRooms Qatar supplies the LDV55-SAI400L with delivery to all eight municipalities of Qatar, professional installation and a free site survey to confirm the fixing point, cable route and power outlet. Government offices and schools can issue a purchase order (LPO) or submit through a tender, and payment can be made by bank transfer, cheque or purchase order. The unit is covered by the manufacturer's warranty. Request a quote and the team will usually reply within one working day with a quotation for your site.

Highlights

55-inch portrait LCD with 2160 × 3840 resolution
Quad-core A55 at 1.92 GHz, Android 11.0, 4 GB RAM, 32 GB ROM
Decodes H.265 and VP9 up to 2160p at 60 fps
HDMI 2.1 input, gigabit Ethernet, USB 2.0 and USB 3.0 ports
Schedules by time and location with multi-level release approval
Operating range 0 °C to +40 °C; avoid direct sunlight

Estimated timeline

Quotation within 1 working day · delivery timing depends on stock availability, and we confirm it with your quotation.

Specifications

43 specifications · Source: manufacturer · checked Oct 2026

LCD Panel10

Screen Size: 55 inch
Backlight: ELED
LCD Technology: IPS/VA
Aspect Ratio: 9:16
Brightness: 320 cd/m² (typ.)
Display Colors: 10 bit (8 bit + FRC), 1.07B colors
Resolution: 2160 (H) × 3840 (V)
Viewing Angle: 178° (H) / 178° (V)
Response Time: 8 ms
Surface Treatment: Haze 1%

Built-in System5

Operating System: Android 11.0
CPU: 4 cores A55, 1.92 GHz
RAM: 4 GB
ROM: 32 GB
Video Decoding: H.265 HEVC MP-10@L5.1 up to 2160p@60 fps; H.264 AVC HP@L5.1 up to 2160p@30 fps; VP9 Profile 2 up to 2160p@60 fps; H.264 MVC up to 1080p@30 fps; MPEG-4 ASP@L5 up to 1080p@30 fps; WMV/VC-1 SP/MP/AP up to 1080p@30 fps;

Function3

Audio Compression: MPEG-3, WMA, WAV
Video Compression: MPEG-4, H.264 AVC/MVC, H.265 HEVC
Video Format: mp4, avi, mov, mkv, wmv

Device Ports6

Network Port: 1 × RJ–45 10/100/1,000 Mbps self-adaptive Ethernet port
Wi-Fi: Optional (External Wi-Fi module)
Data Transmission Ports: 1 × USB 2.0 (type A); 1 × USB 3.0 (type A) 1 × TF card slot, up to 128 GB
Video Input: 1 × HDMI 2.1 (3840 × 2160@60 Hz)
Audio Port: 1 × 3.5 mm jack output
IR Receiver: Yes

Speaker1

Built-in Speaker: 2 × 5 W

General17

Power Supply: 100–240 VAC, 50/60 Hz
Power Consumption: 80 W (typ.), 90 W (max)
Standby Power Consumption: ≤0.5 W
Operating Temperature: 0 °C to +40 °C (+32 °F to +104 °F) (avoid direct sunlight)
Storage Temperature: –20 °C to +60 °C (–4 °F to +140 °F)
Operating Humidity: 10%–85% (RH), non-condensing
Storage Humidity: 10%–90% (RH), non-condensing
Product Material: Metal casing
Casing Color (Frame/Rear): Black
Product Dimensions: 1,850.0 mm × 743.6 mm × 92.3 mm (72.8" × 29.28" × 3.63") (without bracket) 1,900.0 mm × 750.0 mm × 460.0 mm (74.80" × 29.53" × 18.11") (with bracket)
Frame Size: 40.5 mm/31.1 mm /31.1 mm (1.6"/1.2"/1.2") (T/L/R)
Packaging Dimensions: 2,020 mm × 200 mm × 915 mm (79.5" × 7.9" × 36.0") (L × W × H)
Net Weight: 66 kg (145.51 lb)
Gross Weight: 73 kg (160.94 lb)
Installation: Vertical mount
Display Mode: Portrait
Accessory: Bracket, user's manual, power cord, legal and regulatory information, energy label, remote control

Certification1

Certifications: CE EMC, CE LVD, CE ERP

Downloads

7 files from the manufacturer

PDF Datasheets LDV55-SAI400L_V1_datasheet_20250226.pdf 2.1 MB PDF Manuals & guides Digital Signage_Quick Start Guide_V1.0.0_20241025.pdf 1.8 MB PDF Manuals & guides Digital Signage_User's Manual_V1.0.0_20241022.pdf 5.6 MB PDF Drawings & CAD LDV55-SAI400L_DIMENSIONS.pdf 57 KB PDF Drawings & CAD LDV55-SAI400L_PORT.pdf 50 KB 2511 Software & firmware · Opens on manufacturer site DH_LDM-A(T982)_MultiLang_Android_V3.000.0000002.0.R.251126 DOCX Other documents LDV55-SAI400L_A&E_20260908161800.docx 40 KB

Questions about LDV55-SAI400L

What is the Dahua LDV55-SAI400L designed for?

It is a 55-inch indoor vertical LCD for digital signage, built to show content in portrait orientation. Its 9:16 panel with 2160 × 3840 resolution suits wayfinding boards, menus and announcements where horizontal space is limited, such as office entrances and narrow corridors. The manufacturer places it in its Standard Series and describes it as suitable for 24/7 operation, so it fits continuous information displays rather than occasional presentations.

Can a hotel lobby in The Pearl run this screen all day?

Yes, the manufacturer describes the LDV55-SAI400L as suitable for 24/7 operation. Typical power draw is 80 W, rising to 90 W at maximum, and standby consumption is 0.5 W or less. Continuous running still depends on the environment, because the operating range is 0 °C to +40 °C. Place the screen in an air-conditioned lobby and confirm room temperature and ventilation with the SmartRooms Qatar team before installation.

What resolution and brightness does the panel offer?

The panel has 2160 × 3840 pixels, a 4K-class resolution in portrait orientation with a 9:16 aspect ratio. Typical brightness is 320 cd/m², and the 178° horizontal and vertical viewing angles let people walking past the screen from the side still read the content. The surface has 1% haze. If the screen will stand close to a large window, ask the team to review whether the brightness suits the ambient light.

Do I need a separate media player for this screen?

Usually not. The unit runs Android 11.0 on a quad-core A55 processor at 1.92 GHz, with 4 GB of RAM and 32 GB of storage. It decodes H.265 and VP9 up to 2160p at 60 fps and reads mp4, avi, mov, mkv and wmv files from USB or a TF card of up to 128 GB. Ask the team to check your file formats and codecs before you finalise the content plan.

How would a private school in Al Rayyan with screens on several floors manage its content?

Each screen's schedule is set by time and location through the browser-based management platform, so one administration office can update every floor. The platform can control the units remotely and generates operation reports that show whether screens are running. Program releases can pass through multi-level permission review before they appear. Share your floor count and network layout when you request a quote so the setup can be planned.

What security features protect the screens from unauthorised changes?

Data sent to the management platform is encrypted, and each terminal can be protected with its own password. Program releases can require multi-level permission review, so content drafted by one team is approved by another before it appears on screen. These controls suit a government reception or hospital lobby where messages must be checked first. Ask the team to confirm how permission levels should be set for your organisation.

What connections does the unit have?

The main video input is one HDMI 2.1 port supporting 3840 × 2160 at 60 Hz. There is one RJ-45 port for 10/100/1,000 Mbps Ethernet, one USB 2.0 Type A port, one USB 3.0 Type A port, a TF card slot and a 3.5 mm audio output. Wi-Fi is available as an optional external module, and an IR receiver is included for the remote control. Confirm that your media source outputs a compatible HDMI signal before ordering.

Are the built-in speakers enough for a school corridor?

The screen has two built-in 5 W speakers, which suit short announcements and light background sound in corridors and reception areas. For a hall, auditorium or large open atrium, a separate audio system connected through the 3.5 mm output is more appropriate. Your site survey is the right time to decide whether the sound level from the screen will be enough for the space.

What size and weight should I plan for?

Without its bracket the unit measures 1,850.0 mm × 743.6 mm × 92.3 mm, and with the bracket it measures 1,900.0 mm × 750.0 mm × 460.0 mm. Net weight is 66 kg and gross weight is 73 kg. Plan a position with room for the full height and the 460 mm depth with bracket, and allow at least two people for handling. A free site survey confirms the fixing point and cable route before installation.

Is this screen suitable for an open entrance or outdoor area in Qatar?

No, it is not designed for an open entrance or outdoor area. The operating temperature is 0 °C to +40 °C, direct sunlight should be avoided, and humidity must stay between 10% and 85% without condensation. Summer temperatures in Qatar can exceed 45 °C, so the screen should stand inside an air-conditioned space away from windows. If the entrance is covered, describe the environment to the team before ordering.

Which certifications does it carry, and does it suit Qatar's power supply?

The manufacturer lists CE EMC, CE LVD and CE ERP certifications. The power input is 100–240 VAC at 50/60 Hz, which covers Qatar's 240 V, 50 Hz mains supply. A power cord is included in the package. Confirm the plug arrangement with the SmartRooms Qatar team before ordering so the cord matches the BS 1363 sockets at your site.

How should a government office or school order this screen?

Request a quote with the quantity, the delivery location and any mounting requirements. SmartRooms Qatar delivers to all eight municipalities, provides professional installation and offers a free site survey. Government offices and schools can issue a purchase order (LPO) or submit through a tender, and payment can be made by bank transfer, cheque or purchase order. The unit is covered by the manufacturer's warranty, and the team usually replies within one working day.