4.2 inch E-paper display with color


Electronic Shelf Labels, also known by the acronym ESL, is a system mainly used by retailers for displaying product pricing on the shelves. The fully graphical display is remotely updated using a RF based communication network. Automated ESL systems enables you to run a more efficient business. The Opticon ESL server software enables pricing accuracy as it allows you to update the prices more frequently.

The EE-420R is the 4.2 inch e-paper ESL sold by Opticon. With its black, white and red colors it grabs the attention, and adds a bright and clear overview to your business. The EE-420R is a high resolution fully graphical e-paper display. Thanks to the high contrast of the display it is even possible to read barcodes off the display using a normal barcode laser scanner. The display only consumes power during radio transmission, as the display updates. Therefore Opticon guarantees a strong longevity on only two small batteries.
Opticon designed customized brackets to fit shelf solutions provided by our partners HL, Meto and Oechsle.


Use the barcode display feature and the bidirectional communication to update the price information of specific products. You can use an Opticon scanning device and scan the barcode on the ESL label and update the price information on the scanning device. Then you send the updated price information to the server using the wireless communication technology of the scanning device.


This is why the EE-420R should be in your business:

  • Large high resolution display
  • Colored; red, black and white
  • Remote controlled
  • Long lasting battery
  • More space to add any content you want
  • Extra attention at the shelf

We can imagine you want to learn more about our latest ESL design. Please contact your local office and our account managers are happy to give you all the information you need.

The EE-420R is applicable in retail, the pharmaceutial and medical industry, and logistics. Any industry that wants to replace the archaic paper labels with digital labels. This is the perfect solution when your aim is to run an efficient business.

Additional information


Typical 25 meter indoor; 100 meter open-field

Radio frequency

2.4 GHz (2405 – 2480 MHz)

Radio transmission speed

Up to 250 kbps


IEEE 802.15.4 based

No. of ESL’s per base station



2x Alkaline AAA


4.2’’, 400 x 300 pixels (WxH), black, white, red

Active area

84.8 x 63.6 mm (WxH)

Contrast ratio


Pixel pitch

120 dpi

Dimensions (WxHxD)

101 x 93 x 16 mm / 3.98 x 3.66 x 0.63 in


101 gram / 3.56 oz

Product compliance

CE, FCC, RoHS, EN60950-1, IEC60950-1, EN55022, EN55024

Opticon ESL Range creates a new customer experience

Something as technical as an ESL can easily be explained through an animation. Opticon offers a variety of ESL and with Opticon ESL you can display your product on a whole new level. Next to normal E-paper modules, Opticon has also powered E-papers modules (without a battery) with features such as NFC and LED. With the NFC feature it is possible to create a new payment method and with LED you can attract people’s attention.

Option ESL used at Cárnicas Merche

Dedicated infrastructure

Mounting options

We provide a variety of secure, durable and esthetically pleasing ESL shelf mounting options and accessories. Our broad product range is compatible with the most popular shelving systems. Many of our shelf profiles are lightweight, which supports easy, cost-effective migration from traditional paper labels to e-paper labels. In many instances, only the label needs to be changed, which allows for efficient and intelligent shelf management.