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Hisense DM66D Series 55-inch Digital Signage Display – 55DM66D

Hisense

Hisense DM66D Series 55-inch Digital Signage Display – 55DM66D

SKU 55DM66D

The Hisense 55DM66D is a 55-inch 4K UHD digital signage display built for continuous operation in Omani public and corporate spaces. Featuring 500-nit brightness and an IPS panel, it delivers clear visuals for retail, education, and ministry use across Muscat, Salalah, and the wider Sultanate.

Screen size
55"
Resolution
4K UHD
System
Android 11
VESA
300 × 300 mm

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
8-bit + FRC (1.07 billion colours)
Brightness
500 nits

Built-in system

Operating System
Android 11
Processor
ARM 4× Cortex-A55
RAM
3 GB
Storage
32 GB

Audio

Speaker Output
2 × 10 W

Description

Designed for demanding environments, this display supports 24/7 operation with an ADS panel providing 178-degree viewing angles. The 500-nit brightness ensures content remains visible in well-lit lobbies in Muscat or Sohar. It runs on Android 11, allowing flexible content management and connectivity via dual-band Wi-Fi and Bluetooth 5.1 for seamless integration into existing AV infrastructure.

The 55-inch unit features a slim 10.1mm bezel for clean video wall configurations. With VESA 300×300mm mounting options, it installs easily in Nizwa or Dhofar locations. SmartRooms Oman provides itemised quotations in Omani Rial, covering hardware, delivery, and installation labour for government and commercial tender requirements across all 11 governorates.

Ideal for: Retail kiosks, corporate lobbies, university notice boards, and government information centres in Oman requiring 24/7 reliable display performance.

  • 4K UHD Resolution – Delivers 3840 × 2160 pixel clarity on a 55-inch IPS panel for sharp text and imagery.
  • Continuous Operation – Engineered for 24/7 use with 500-nit brightness and 1200:1 contrast ratio.
  • Android 11 OS – Built-in operating system allows direct content management without external players.
  • Dual-Band Connectivity – Supports 2.4/5.0GHz Wi-Fi and Bluetooth 5.1 for flexible device pairing.
  • VESA Mounting – Fits standard 300mm x 300mm wall mounts or stands for versatile installation.
  • Built-in Audio – Includes dual 10W speakers for standalone audio output without external amplifiers.
  • Slim Bezel Design – Features a 10.1mm bezel width for clean multi-display video wall setups.

Specifications

Manufacturer specifications · confirmed on your quotation

Display

Screen Size
55 inch
Resolution
3840 × 2160 (4K UHD)
Display Color
8-bit + FRC (1.07 billion colours)
Brightness
500 nits
Backlight
Direct LED
Refresh Rate
60 Hz
Viewing Angle
178° (H) / 178° (V)

System

Operating System
Android 11
Processor
ARM 4× Cortex-A55
RAM
3 GB
Storage
32 GB

Connectivity

HDMI Input
HDMI In × 2
HDMI Output
HDMI Out × 1
DisplayPort
DisplayPort 1.2a × 1
USB Ports
USB 2.0 × 1, USB 3.0 × 1
Audio out
3.5 mm external speaker out
Ethernet
RJ45 × 1
Wi-Fi
Built-in
Bluetooth
Built-in
Serial Port
RS-232 × 1

Camera & audio

Speaker Output
2 × 10 W

Physical & warranty

Dimensions
1239.7 × 710.2 × 63.3 mm
Weight
13.9 kg
Shipping Dimensions
1387 × 838 × 159 mm
Shipping Weight
19.5 kg
VESA
300 × 300 mm
Mounting Orientation
Landscape & Portrait
Colour
Black
Power Consumption
115 W
Power Standby
≤ 0.5 W
Operating Temperature
0°C to 40°C
Operating Humidity
10% to 80% RH
Certifications
CCC, CB, CE, FCC, cTUVus, UKCA, CEC, ERP, 62368-1, Energy Star 8.0

Other

Package Contents
Quick Setup Guide, Warranty Card, Power Cord, Remote Controller, Battery (AAA) × 2, RS232 Converter Cable
More Information
Response time: 8 ms | Contrast ratio: 1,200:1 | IP rating: IP5X | Panel technology: ADS | Color gamut: 72% NTSC | Bezel: 10.1 mm (T/L/R), 10.6 mm (B) | 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 supply the Hisense 55DM66D in Muscat?

Yes. As an authorised reseller, SmartRooms Oman supplies this model to clients across all 11 governorates, including Muscat, Sohar, and Salalah. We provide itemised quotations in Omani Rial with VAT shown, covering hardware, delivery, and installation labour.

Does this display support 24/7 operation?

Yes. The Hisense 55DM66D is rated for 24/7 continuous operation. It features a 500-nit typical brightness and an IPS panel designed for longevity in public spaces and corporate environments.

Is Android 11 included in the unit?

Yes. The display runs on Android 11, enabling direct content management and app installation. This allows users to control signage remotely via the built-in Wi-Fi and Bluetooth connectivity.

Can you provide tender documentation for this product?

Yes. Our team provides datasheets and compliance statements for government and corporate tenders in Oman. We support bilingual quotations in Arabic and English to meet local procurement requirements.

What is the bezel width for video wall installations?

The top, left, and right bezel width is 10.1mm, while the bottom is 10.6mm. This slim profile allows for near-seamless video wall configurations in educational and commercial settings.

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