65" · 4K UHD · Android 13
LG
LG 55UM3DG 55-inch UHD Signage Display
MPN 55UM3DG-B.AMA
SKU 55UM3DG-B.AMA
The LG 55UM3DG is a 55-inch UHD digital signage display designed for professional environments. It features a 3,840 × 2,160 resolution, 350 nits brightness, and IP5x dust protection. SmartRooms Oman provides this unit for projects across Muscat, Salalah, and Nizwa. Quotations include VAT and delivery options.
- Screen size
- 55"
- Resolution
- 4K UHD
- OPS slot
- No
- VESA
- 300 × 300 mm
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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.
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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)
- Brightness
- 350 nits
- Refresh Rate
- 60 Hz
Built-in system
- Operating System
- webOS
Ports and connections
- Serial Port
- RS-232C In/Out
- Connectivity Options
- HDMI, USB, RS-232, RJ45, Audio Out
Description
This LG display delivers 3,840 × 2,160 pixel clarity on a 55-inch IPS panel. The 350 nits brightness ensures visibility in standard indoor lighting. A 1,100:1 contrast ratio and 178-degree viewing angles support clear content display. The 9.9 mm top bezel facilitates multi-screen video wall configurations. It supports portrait and landscape mounting for flexible installation.
Designed for continuous operation, the panel handles 18 hours per day duty cycles. An IP5x rating protects internal components from dust ingress, enhancing durability. The unit weighs 19.0 kg and fits standard VESA 300 × 300 mounts. External control via RS232C allows integration with central management systems. SuperSign CMS software manages content scheduling and monitoring efficiently.
SmartRooms Oman supplies the LG 55UM3DG for commercial and government clients. We provide itemised quotations in Omani Rial with VAT clearly shown. Our team covers all 11 governorates, from Musandam to Dhofar. We handle delivery and installation through verified partner teams. Tender support includes datasheets and compliance statements for official bids.
Ideal for: Digital signage in Omani schools, universities, ministries, and corporate lobbies requiring durable UHD displays.
- UHD Resolution – The panel displays 3,840 × 2,160 pixels for sharp image detail on the 55-inch screen.
- Dust Protection – An IP5x rating shields the display from dust, suitable for demanding indoor environments.
- Flexible Mounting – Supports portrait and landscape orientations with a standard VESA 300 × 300 interface.
- Professional Control – RS232C connectivity enables reliable external control for centralized signage networks.
- Long Lifespan – The panel offers a typical 50,000-hour lifetime for sustained daily operation.
Specifications
Manufacturer specifications · confirmed on your quotation
Display
- Screen Size
- 55 inch
- Resolution
- 3840 × 2160 (4K UHD)
- Brightness
- 350 nits
- Refresh Rate
- 60 Hz
- Viewing Angle
- 178° (H) / 178° (V)
System
- Operating System
- webOS
- OPS slot
- No
Connectivity
- Serial Port
- RS-232C In/Out
- Connectivity Options
- HDMI, USB, RS-232, RJ45, Audio Out
Physical & warranty
- Dimensions
- 1234.4 × 720.9 × 39.9 mm
- Weight
- 19.0 kg
- Shipping Dimensions
- 1360 × 835 × 175 mm
- VESA
- 300 × 300 mm
- Mounting Orientation
- Portrait & Landscape
- Tilt
- Up to 15° (face down)
- Power Consumption
- 95 W (typical)
- Warranty
- 1 year
Other
- Key Features
- Portrait and landscape orientation, RS-232C In/Out, RJ45 (LAN), IR input, SuperSign CMS and Control, Signage365Care, Tilt up to 15° face down
- Package Contents
- Remote Controller, Power Cord, QSG, Regulation Book, Phone to RS-232C Gender
- More Information
- Panel technology: IPS | Aspect ratio: 16:9 | Contrast ratio: 1,100:1 | Response time: 8 ms | Operating hours: 18/7 | Input voltage: 100–240 V AC, 50/60 Hz | IP rating: IP5X | Bezel: 9.9 mm (T/L/R), 14.4 mm (B)
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.
Can I buy the LG 55UM3DG in Oman?
Yes, SmartRooms Oman supplies the LG 55UM3DG. As an authorised reseller, we provide quotations for delivery and installation across all governorates. Please contact us for pricing and availability confirmation.
Is the LG 55UM3DG suitable for video walls?
Yes, the 9.9 mm top and side bezels make it ideal for multi-panel setups. The IPS panel ensures consistent color and viewing angles across the wall. It supports portrait and landscape mounting for flexible configurations.
Does SmartRooms Oman support government tenders?
Yes, we provide tender support with datasheets and compliance statements. Our quotations are in Omani Rial with VAT shown. We cover hardware, delivery, and labour in one document for efficient bidding.
What is the display's brightness level?
The LG 55UM3DG has a typical brightness of 350 nits. This level is suitable for standard indoor environments. It ensures clear visibility without excessive power consumption.
Does this model support OPS?
No, the LG 55UM3DG does not support OPS modules. You can use external media players or control systems via RS232C for content management and monitoring.
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