Welcome to our website! As we have the ability to list on our website (our selection changes all of the time), it is not feasible for a company our size to record and playback the descriptions on every item on our website. However, if you are an American with a disability we are here to help you. Please call our disability services phone line at 1-800-262-0106 during regular business hours and one of our kind and friendly personal shoppers will help you navigate through our website, help conduct advanced searches, help you choose the item you are looking for with the specifications you are seeking, read you the specifications of any item and consult with you about the products themselves. There is no charge for the help of this personal shopper for any American with a disability. Finally, your personal shopper will explain our Privacy Policy and Terms of Service, and help you place an order if you so desire.

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LG Logo

55" Standard Performance Signage with webOS 3.0

Model # 55SM3C

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Soft AP

The SM3C with Soft AP software can operate as a wireless access point for mobile devices.

Simple Installation

Installation has been simplified by removing the external media player and Ethernet / RS232C cables.

Wi-Fi : (removing Ethernet or RS232C cables)
802.11n (2.4 GHz / 5 GHz)


With BEACON and Bluetooth Low Energy (BLE) supported by SM3C*, retail stores can provide coupons and information in real time.

Dust & Humidity Protection

Circuit board reliability is enhanced with conformal coating that protects against dust, iron powder, humidity and other harsh conditions.

Detachable logo

The detachable logo allows for installation in the desired orientation: landscape or portrait mode.


  • Brightness : 350 cd/m2
  • Bezel : Top/Left/Right 11.9 mm (Bottom 18.0 mm)
  • Depth : 38.6 mm
  • Interface : HDMI, DVI, DP, RGB, RJ45, IR, RS232C, SD Card, USB
Screen Size 55"
Resolution 1,920 x 1,080 (FHD)
Brightness 350cd/m2
Orientation Portrait & Landscape
Input HDMI, DP, DVI-D, RGB, Audio in
Output DP, Audio, External Speaker out
External Control RS232C, RJ45, IR receiver, Pixel Sensor, USB 3.0, SD card
Bezel Width 11.9 mm (T/R/L), 18 mm
Monitor Dimension (W x H x D) 1,238 x 714.9 x 38.6 mm
Weight (Head) 17.3 kg
VESA™ Standard Mount Interface 300mm x 300mm
Operation Temperature 0°C to 40°C
Operation Humidity 10 % to 80 %
Power Supply 100-240V~, 50/60Hz
Power Type Built-in Power
Safety UL / cUL / CB / TUV / KC
EMC FCC Class "A" / CE / KCC
ErP / Energy Star NA / Yes (Energy Star 7.0)
OPS type compatible Yes
External Media Player Attatchable Yes (MP500/MP700)
SuperSign-w lite Yes
SuperSign-c Yes
Basic Remote Controller (2ea batteries included), Power cord, QSG, RGB cable, Regulation book, Phone to RS232C gender, Memory cover
Optional Speaker (SP-5000), Stand (ST-432T), Pixel sensor (KT-SP0), Media player, Wall bracket (LSW230B), VESA Adapter (AM-B220S), OPS Kit (KT-OPSA), HDBaseT (EB-B100)

Extended warranties are usually very inexpensive and can save you thousands in the future. It's simple and inexpensive to purchase extended warranties and one of the smartest ways to protect your investment.

Electronics can be large, heavy, and expensive and you probably don't have the special tools or expertise needed to fix them in a crisis. If you can spare a few thousand dollars without batting an eyelash for new electronics should they break tomorrow, don't buy a warranty. But if you're like most of us, protect yourself by purchasing inexpensive extended warranties when you buy a new product and save yourself big money in the long run.

Professional delivery and installation is available for every product we sell. We would be happy to coordinate delivery and installation for you.

Questions or Comments?
Call 1-800-262-0106 for assistance. Click Here for hhgregg location and contact information.

When it comes to buying new electronics for your home, there are a lot of choices available to you. We merchandise our store with careful consideration, striving to carry the appropriate variety of the best brands available today. We know everything about our products and are eager to help you find anything that fits your unique needs. Let us help you find your perfect match in size, features, price, and style.

Finding the right electronics can be a daunting task, but one well worth the effort. You'll use your new electronics often, and they add value, style, and convenience to your home. Make sure you have the right information to help you make these important decisions. Shop with experts who can show you the best selection available and answer all your questions; come see our inventory of the latest trends and the most dependable manufacturers.

Because we know our products inside and out, our service doesn't end with your purchase. We have long standing relationships with the most popular manufacturers and all the product knowledge to help you maintain healthy efficient electronics for the duration of their lives.

Shop where you can see the finest selection of the best products available today to match your budget, needs, and style. Shop where experts can guide you through the myriad of options available and can answer your every question. Shop where you get exceptional service for the life of your electronics.

Come shop with us!