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LG 55TR3BG 55in 4K Interactive Digital Board with OPS Slot, Infrared Touch

LG

LG 55TR3BG 55in 4K Interactive Digital Board with OPS Slot, Infrared Touch

MPN LG55TR3BG SKU LG55TR3BG

55-inch 4K UHD interactive digital board with built-in OPS PC slot, 20-point infrared touch, 280–311 nit brightness, and comprehensive connectivity for education.

Screen size
55"
Resolution
3840 × 2160 (4K UHD)
Touch
20 points
OPS slot
Yes

Pricing

Price on request in OMR

Include in your quote
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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"
Resolution
3840 × 2160 (4K UHD)
Display Color
10-bit (1.07 billion colours)
Brightness
310 nits

Touch and writing

Touch Technology
IR
Touch Points
20-point multi-touch
Touch Accuracy
±1.5 mm
Touch Response Time
≤ 10 ms

Built-in system

Operating System
Android 8.0
Processor
ARM 2× Cortex-A73 + 2× Cortex-A53
GPU
Arm Mali-G51 (dual-core)
RAM
3 GB

Description

The LG 55TR3BG is a 55-inch 4K UHD interactive digital board with built-in OPS PC slot for classroom and corporate environments. Infrared touch technology with 20 points enables responsive multi-user interaction. Brightness ranges from 280–311 nit depending on glass coating. Android 8.0 OS provides native support for interactive applications.

Connectivity includes three HDMI inputs, one VGA input, one HDMI output, three USB 3.0 and USB 2.0 ports, and dedicated USB touch ports. Gigabit Ethernet (RJ45) provides network management. Dual RJ45 connections (one standard, one via touch section) and RS-232C serial interface enable third-party integration. Audio in/out supports flexible audio setup. 1270.5 × 773.6 mm footprint accommodates VESA mounting.

Ideal for: Tech-forward schools, universities, corporate training departments, and collaborative spaces where embedded computing and interactive learning are priorities.

  • 55-inch 4K UHD (3840×2160) with built-in OPS PC slot
  • 20-point infrared multi-touch, 280–311 nit brightness
  • Android 8.0 OS, HDMI ×3 in / ×1 out, VGA ×1
  • USB 3.0 ×3, USB 2.0 ×3, USB touch ×2
  • Gigabit Ethernet with dual RJ45, RS-232C serial
  • Audio in/out, VESA wall-mount compatible

Specifications

Manufacturer specifications · confirmed on your quotation

Display

Screen Size
55"
Resolution
3840 × 2160 (4K UHD)
Display Color
10-bit (1.07 billion colours)
Brightness
310 nits
Backlight
Direct LED
Refresh Rate
60 Hz
Viewing Angle
178° (H) / 178° (V)
Surface Protection
Anti-glare (25% haze)

Touch

Touch Technology
IR
Touch Points
20-point multi-touch
Touch Accuracy
±1.5 mm
Touch Response Time
≤ 10 ms

System

Operating System
Android 8.0
Processor
ARM 2× Cortex-A73 + 2× Cortex-A53
GPU
Arm Mali-G51 (dual-core)
RAM
3 GB
Storage
16 GB
OPS slot
Yes (Built-in OPS Slot)

Connectivity

HDMI Input
3
HDMI Output
1
VGA input
1 (RGB)
USB Ports
USB 3.0 (3), USB 2.0 (3)
Touch USB ports
2
Audio in
1
Audio out
1
Ethernet
RJ45 × 1
Wi-Fi
802.11a/b/g/n/ac
Bluetooth
Bluetooth 4.0
Serial Port
RS-232C (1)
Connectivity Options
HDMI, USB, RS-232, Ethernet, Wi-Fi, Bluetooth

Camera & audio

Speaker Type
Built-in
Speaker Output
2 × 12 W

Physical & warranty

Dimensions
1271 × 774 × 84 mm
Weight
27 kg
Shipping Dimensions
1450 × 1015 × 225 mm
VESA
400 × 200 mm
Mounting Type
Wall mount and mobile stand compatible
Mounting Orientation
Landscape
Power Standby
0.5 W
Operating Temperature
0 to 40 °C
Operating Humidity
10% to 80% RH

Other

Key Features
Screen Share, Local Key Operation, OPS Power Built-in, Wi-Fi/BT Built-in
Package Contents
Power Cord 3 M × 1, USB Cable (Type A-Type B) 5 M × 1, HDMI Cable 3 M × 1, Writing Pen × 2, User Manual, QSG, Carton Box, Remote Controller (incl. battery 2 ea), Wi-Fi Module
Compatible Models
Windows, macOS, Android, iOS
More Information
Product Name: LG 55'' 55TR3BG Interactive Multi-Touch Digital Board
Manufacturer: LG
Display Size: 55 inches
Resolution: 4K UHD (3840 × 2160)
Aspect Ratio: 16:9
Touch Technology: Infrared multi-touch (20 touch points)
Operating System: Android-based OS
Speakers: Integrated high-quality audio system
Wireless Sharing: Miracast, AirPlay, Chromecast
Connectivity: HDMI, USB, USB-C, Wi-Fi, Bluetooth, RJ-45 Ethernet
Compatibility: Windows, macOS, iOS, Android
Mounting Options: Wall-mount & mobile stand compatible
Security: Data encryption, secure access control
Power Supply: AC 100–240V, 50/60Hz
Country of Origin: South Korea

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.

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