5551L 54.6" Interactive Digital Signage

The Elo 5551L 55-inch Ultra High Definition (UHD) touchscreen signage display features phenomenal 4K resolution image quality in a slim, integrated package. Designed from the bottom up for retail, hospitality, enterprise, commercial real estate, education, corporate meeting rooms, lobbies and other commercial applications, the large widescreen 5551L offers a bright, 450-nit LED panel, with a high-quality, interactive canvas for attracting and engaging consumers. With a 10-touch ‘tablet-like’ performance, the infrared touchscreen technology provides higher touch sensitivity and brightness in a large 55-inch size.

Thinner & lighter.

At 3.5 inches thin, the 5551L is compliant with the ADA requirement of less than 4-inch protrusion for wall-mounted products when used with an Elo low-profile mount. 

Integrated touch.

Elo’s products are factory-built touch systems with durability built in, not snapped on, preventing any “double bezel” appearance or rattling when touched. The 5551L delivers undistorted display clarity due to use of clear glass with true native 4K resolution, auto-switching between active input sources and RS232C serial control input. Available with infrared touchscreen technology and a traditional bezel construction, the 5551L delivers a sensitive multi-touch tablet-like response.. 

Processing power.

Optional, high-performance Windows® computer modules are available to turn the 5551L into a completely integrated all-in-one computer without the need for any cables or additional mounting hardware.

Manufacturer Part Number
Full Product Specifications


  • The full product specifications below are from the manufacturer and may contain information related to other package quantities that will not apply to the product that you are reviewing. Please confirm the actual content and/or package quantity from the main product specifications page.
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Part Number(s)

Infrared (Worldwide) - E268447

Enclosure Color


Touch Technology & Capacity

Infrared - 10 Touch

Diagonal Size

54.6'' diagonal, Active matrix TFT LCD (LED)

Active Area (mm)

47.6" x 26.8" / 1209.6mm x 680.4mm

Aspect Ratio



UHD 3840 x 2160 @ 60Hz

Viewing Angle

Horizontal: ±89° or 178° total / Vertical: ±89° or 178° total


1073.7 million

Brightness (typical)

LCD Panel: 450 nits
IR: 405

Response Time-total (typical)

6.5 msec

Contrast Ratio


On Screen Display

Controls: Menu, Up, Down, Select, Power
Video Settings: Brightness, Contrast, VGA Settings (if available), Clock, Phase, Auto-Adjust, H-position, V-position, Aspect Ratio, Sharpness, Color Temperature, OSD Timeout, OSD Language, OSD H-Position, OSD V-Position, Recall Defaults, Video Source
OSD Timer: Change between 5 and 60 seconds
Color Adjust: 9300K, 7500K, 6500K, 5500K and User mode
Color Reference: Standard, Gaming, Movie, Photo, Webcam, Blur
Saturation and Hue: In any mode other than Standard mode
Audio: From Video Source, From Line-in and ECM Line-in
Audio Controls: Mute, Volume up and Down
Video: Choose from VGA, HDMI, DisplayPort, Elo Computer Module
MDC Protocol: IIC or RS232
Black Level: Standard, 5%, 10% and 20% Offset
Light Sensor enable/disable: Sharpness Level
Aspect Ratio: Fill Screen, Fill to Aspect Ratio and Direct Output
Languages: English, French, Italian, German, Spanish, Simplified Chinese, Traditional Chinese, Japanese
Lockouts: OSD, Power
Other Settings: Power Behavior, Tabletop mode, Information, MDC Protocol, Support and Help, System Temperature and Exit
Accessible through switches on the unit's tethered OSD control box.

I/O Ports

Input: AC power, RJ45 Remote Connector, RS232 connector, HDMI, DisplayPort, USB type B, Audio Line In
Output: Headphone Out

Input Video Format

HDCP-capable HDMI on Type A connector, DisplayPort 1.1a connector

Input Video Frequency

Horizontal: 30 – 139.2 KHz
Vertical: 24 - 63 Hz

Audio Input Connector

3.5 mm TRS jack

Audio Input Signal Range

1Vrms max stereo signal (standard PC line out)

Headphone Output Connector

3.5 mm TRS jack


Internal 4 x 5W stereo speakers

Power Supply

Internal AC

Input Connector

IEC 60320 C14

Input Voltage

100-240VAC 50/60Hz

Power Consumption (Typical)

Monitor Only
(Typical at 120V at 60Hz): ON: 157 W; SLEEP: 15 W; OFF: 0.7 W
(Typical at 230V at 50Hz): ON: 156 W; SLEEP: 15 W; OFF: 0.8 W


49.8" x 29" x 3.5" / 1267mm x 738mm x 90mm

Shipping Box Dimensions

55.9" x 34.6" x 9.3" / 1420mm x 880mm x 235mm

Weight (Unpackaged)

Monitor Only: 100 lbs / 45.4 kg
Monitor with Computer Module: 105 lbs / 47.6 kg

Weight (Packaged)

Monitor Only: 121 lbs / 55 kg
Monitor with Computer Module: 126 lbs / 57.2 kg

Operating Temperature

Portrait/Landscape Mode: 0° C to 40° C / 32°F to 104°F
Tabletop Mode: 0° C to 35° C / 32°F to 95° F
With OPS module: 0° C to 35° C / 32°F to 95° F

Storage Temperature

-20°C to 50°C / -4°F to 122°F


Operating: 20% to 80%
Storage: 10% to 95%


Touchscreen sealed to bezel; Touchscreen sealed to LCD


50,000 hours demonstrated



Optional Product Coverage

Extended Warranty (North America and EMEA only)

Regulatory approvals and declarations

UL, FCC - Class A, cUL, IC, CB, CE - Class A, C-Tick - Class A, NOM CoC, CCC, China RoHS
With RFID: UL, FCC - Class A, CE - Class A

RFID Supported Protocols

ISO – 14443-A
ISO – 14443-B
ISO – 15693

What's in the Box

QIG, JP Class A Kiosk Info, HDMI cable, DisplayPort cable, USB cable, RS232 cable, 3.5mm audio cable, power cable (NA, EU/KR, UK, AR, CH, and JP plugs), 3-pin to 2-pin adapter for JP power cable, Energy label according to EU Regulation 1062/2010

IDS Optional Accessories

3.4 GHz ECMG2B-i3 without OS - Elo P/N: E001292
3.4 GHz ECMG2B-i3 with Windows 7 - Elo P/N: E001293
3.4 GHz ECMG2B-i3 with Windows 8.1 - Elo P/N: E001294
3.7 GHz ECMG2B-i5 without OS - Elo P/N: E001295
3.7 GHz ECMG2B-i5 with Windows 7 - Elo P/N: E001296
3.7 GHz ECMG2B-i5 with Windows 8.1 - Elo P/N: E001297
4.0 GHz ECMG2B-i7 without OS - Elo P/N: E001298
4.0 GHz ECMG2B-i7 with Windows 7 - Elo P/N: E001299
4.0 GHz ECMG2B-i7 with Windows 8.1 - Elo P/N: E001300
Web Cam Kit - Elo P/N: E688656
NFC Adapter - Elo P/N: E918074
OPS Kit - Elo P/N: E102270
OSD Control Box - Elo P/N: E483757
Replacement Cable Kit - Elo P/N: E000263
Wall Mount Kit - Elo P/N: E248743