What Is an ESL?
An ESL (Electronic Shelf Label) is an e-paper price tag on the shelf. It shows prices on the same e-paper used in e-book readers, replacing traditional paper price cards.
Change a price and it is sent from a computer through in-store access points to every label, updating the whole store at once — no more printing, cutting and carrying stacks of cards down every aisle.
Changing prices on paper tags
- Change price on PC, print
- Cut and sort
- Find and replace each tag on the shelf
- Go back and check for missed tags
Changing prices with ESL
- Change the price on a PC (or ERP/POS) and send
- All labels update automatically. Done.
(2 updates/day)
small to large
promotions stand out
Try It: Update the Whole Store in One Click
Click a button to see every label on the shelf update at once.
Store dashboard (demo)
In real use, updates come automatically from ERP/POS or manually from the ESL platform.
Illustration: 2.13″ e-paper labels; red and yellow are colors the e-paper itself can display.
4 Steps from Computer to Shelf
Get product data
Your ERP/POS syncs products and prices to the ESL platform (cloud or on-premises).
Send to store access points
The ESL platform sends the updates to the access points in the right store.
Wireless to labels
Access points send data and layouts via Bluetooth to every e-paper label or LCD.
Display updates
Labels show the new price, promotion and product info. Done.


Who Benefits from ESL?
Owners save money, staff save time, shoppers buy with confidence.
Store Owners
- Fast, accurate pricing
Send once from HQ or the dashboard and every label updates — no more shelf/checkout price mismatches.
- Save labor
No more printing, cutting and swapping paper tags one by one — staff can focus on customers.
- Less paper waste
Reusable e-paper saves stacks of paper cards and supplies.
- A more polished store
Neat, consistent e-labels make the store look professional and modern.
Store Staff
- Easier work
No overtime for price changes or promotions; bind products to labels with a PDA in seconds.
- Digital workflow
Prices are managed centrally — fewer handwritten tags, missed changes and reconciliation headaches.
- Status at a glance
See every label and access point in the dashboard; LEDs flag out-of-stock or low battery.
Customers
- Clear, complete info
Price, promotion, specs and barcode at a glance — what you see is what you pay.
- More convenient shopping
Supports services such as order online, pick up in store.
- Accurate prices
Shelf and checkout prices match — fewer disputes and complaints.
Which Label Size?
Pick a size and compare it with a credit card.
1.54″ Small Label
The most compact square label — for small packaged goods, cosmetics, accessories and tight shelf space.
- Display area
- 27 × 27 mm
- Display colors
- Black/White/Red/Yellow
- Battery life
- About 6 years (2 updates/day)

2.13″ Standard Label (Most Popular)
The most common size for regular shelves — fits the product name, price and barcode with the best balance of cost and layout.
- Display area
- 48.6 × 23.5 mm
- Display colors
- Black/White/Red/Yellow
- Battery life
- About 10 years (2 updates/day)

2.9″ Wide Label
Wider than 2.13″ — room for promo text, member prices or origin information.
- Display area
- 67 × 29 mm
- Display colors
- Black/White/Red/Yellow
- Battery life
- About 10 years (2 updates/day)

4.2″ Large Label
Large text and more information — great for fresh produce sold by weight, electronics spec comparisons and featured promotions.
- Display area
- 85 × 63.5 mm
- Display colors
- Black/White/Red/Yellow
- Battery life
- About 10 years (2 updates/day)

7.5″ Mini Signage
Works as a small promo board or zone sign on end caps, displays or above shelves.
- Display area
- 163 × 98 mm
- Display colors
- Black/White/Red/Yellow
- Battery life
- About 10 years (2 updates/day)

13.3″ Large Signage
A4-class e-paper signage for themed displays and announcements — no more printed posters.
- Display area
- 275.5 × 195 mm
- Display colors
- Black/White/Red
- Battery life
- About 10 years (2 updates/day)

Freezer Models (2.1″ / 2.66″)
Operates from -25 to 25℃ for freezers and chillers; standard models operate from 0 to 40℃.
- Display area
- 48.5 × 23.5 mm
- Display colors
- Black/White
- Battery life
- About 10 years (2 updates/day)

Shelf-edge LCD Bars (Full Color)
Bar-type screens on the shelf edge that play video, color ads and prices to catch shoppers' eyes.
23.1″ Shelf-edge LCD 60 cm shelf · LCD-2310 · 1920×158
35″ Shelf-edge LCD 90 cm shelf · LCD-3500 · 3840×200
37″ Shelf-edge LCD 90 cm shelf · LCD-3700 · 1920×540
47.1″ Shelf-edge LCD 120 cm shelf · LCD-4710 · 3840×160
Upright LCD Displays (Full Color)
10.1″ single- or double-sided screens for aisles, end caps and next-to-product displays. Supports WiFi and NFC.
10.1″ Single-sided Display LCD-1010 · 800×1280 · -20 to 50℃
10.1″ Double-sided Display LCD-1010-D · 800×1280 · -20 to 50℃
ROI Calculator: When Does It Pay Off?
Defaults describe a mid-size supermarket of about 2,000 m² (600 ping) with 20,000 SKUs over 5 years. Enter your own numbers to see results instantly.
※ This is an estimate only; actual costs depend on a site survey and quotation. Losses and compensation caused by manual pricing errors are not included.
How Does Data Get In? Where Does the System Run?
Choose what fits your current systems — no need to replace your ERP/POS.
Three ways to import data
API Integration
Connect directly to your ERP/POS via API for real-time product and price sync — the most automated option.

Middleware Tool
Install a tool on a store PC that reads product data from CSV, Excel or a database, converts it and pushes it to the ESL platform.

Excel Import
Log in to the ESL platform and import product data using our Excel template.

Three deployment options
Public Cloud
Runs on our public cloud with distributed, cluster deployment — no servers needed, fastest to launch.

Private Cloud
Deployed on your own cloud servers with cluster deployment — you control the data.

On-premises
Installed on your internal private network with cluster deployment — for companies with security policies.

FAQ
Do e-paper labels drain power? How often do batteries need changing?
E-paper only uses power when the image changes; a static display uses almost none. At 2 updates per day, battery life is about 6–10 years (depending on size), and batteries are replaceable.
Where does the price data come from? Do we re-enter it?
No. Connect directly to your ERP/POS via API, install a middleware tool that reads product data from CSV, Excel or a database automatically, or — for small stores — simply import an Excel file on the ESL platform.
Does each label need cables or power?
No. Labels have built-in batteries and connect wirelessly via Bluetooth to in-store access points. The number of access points depends on store size and layout — about 15–20 for a store of roughly 2,000 m² (600 ping).
Can they be used in freezers and chillers?
Yes. The 2.1″ and 2.66″ freezer models operate from -25 to 25℃; standard models operate from 0 to 40℃.
Can they show red or yellow promotions?
Yes. Most models support black, white, red and yellow e-ink; the 5.8″ has a full-color e-paper version; for video or full-color ads, choose shelf-edge LCD bars.
Can staff update a label on the spot?
Yes. NFC models (● in the NFC column) can be updated by tapping a phone; staff can also bind products to labels by scanning both barcodes with a PDA.
Cloud or on-premises?
Any of the three: our public cloud (fastest to launch), your own cloud servers (ideal for chains), or your internal private network (for companies with security policies).
How many do I need to start? Can I try it first?
We suggest starting with one store or one section, confirming the workflow and results, then expanding. Gold-Pick can survey your site and plan quantities and pricing based on store size, SKU count and update frequency.
Full Specs
Open each series to see all models. Models with ● in the NFC column can be updated by tapping a phone.
E-paper Labels A Series (1.54″–13.3″) 32 models
| Series | Model | Display colors | Enclosure | NFC | LED | Resolution | Label size (mm) | Display size (mm) | Battery life* | Operating Temperature |
|---|---|---|---|---|---|---|---|---|---|---|
1.54″ A Series | E154WA4N | Black/White/Red/Yellow | White | ● | ● | 200×200 | 44.5×36×12 | 27×27 | 6 yrs | 0 to 40℃ |
| E154BA4N | Black/White/Red/Yellow | Black | ● | ● | 200×200 | 44.5×36×12 | 27×27 | 6 yrs | 0 to 40℃ | |
| E154WA3N | Black/White/Red | White | ● | ● | 200×200 | 44.5×36×12 | 27×27 | 6 yrs | 0 to 40℃ | |
| E154WA3 | Black/White/Red/Yellow | White | – | ● | 200×200 | 44.5×36×12 | 27×27 | 6 yrs | 0 to 40℃ | |
1.8″ A Series | E180WA4N | Black/White/Red | White | ● | ● | 224×168 | 52.5×36×10.5 | 36×27 | 6 yrs | 0 to 40℃ |
| E180WA3N | Black/White/Red | White | ● | ● | 224×168 | 52.5×36×10.5 | 36×27 | 6 yrs | 0 to 40℃ | |
| E180WA3 | Black/White/Red | White | – | ● | 224×168 | 52.5×36×10.5 | 36×27 | 6 yrs | 0 to 40℃ | |
2.13″ A Series | E213WA4N | Black/White/Red/Yellow | White | ● | ● | 250×122 | 70×34.5×12 | 48.6×23.5 | 10 yrs | 0 to 40℃ |
| E213BA4N | Black/White/Red/Yellow | Black | ● | ● | 250×122 | 70×34.5×12 | 48.6×23.5 | 10 yrs | 0 to 40℃ | |
| E213WA3N | Black/White/Red | White | ● | ● | 250×122 | 70×34.5×12 | 48.6×23.5 | 10 yrs | 0 to 40℃ | |
| E213WA3 | Black/White/Red | White | – | ● | 250×122 | 70×34.5×12 | 48.6×23.5 | 10 yrs | 0 to 40℃ | |
2.66″ A Series | E266WA4N | Black/White/Red/Yellow | White | ● | ● | 296×152 | 83×41×12 | 60×30.5 | 10 yrs | 0 to 40℃ |
| E266BA4N | Black/White/Red/Yellow | Black | ● | ● | 296×152 | 83×41×12 | 60×30.5 | 10 yrs | 0 to 40℃ | |
| E266WA3N | Black/White/Red | White | ● | ● | 296×152 | 83×41×12 | 60×30.5 | 10 yrs | 0 to 40℃ | |
| E266WA3 | Black/White/Red | White | – | ● | 296×152 | 83×41×12 | 60×30.5 | 10 yrs | 0 to 40℃ | |
2.9″ A Series | E290WA4N | Black/White/Red/Yellow | White | ● | ● | 296×128 | 90×41×12 | 67×29 | 10 yrs | 0 to 40℃ |
| E290BA4N | Black/White/Red/Yellow | Black | ● | ● | 296×128 | 90×41×12 | 67×29 | 10 yrs | 0 to 40℃ | |
| E290WA3N | Black/White/Red | White | ● | ● | 296×128 | 90×41×12 | 67×29 | 10 yrs | 0 to 40℃ | |
| E290WA3 | Black/White/Red | White | – | – | 296×128 | 90×41×12 | 67×29 | 10 yrs | 0 to 40℃ | |
4.2″ A Series | E420WA4N | Black/White/Red/Yellow | White | ● | ● | 300×400 | 105×87×13 | 85×63.5 | 10 yrs | 0 to 40℃ |
| E420BA4N | Black/White/Red/Yellow | Black | ● | ● | 300×400 | 105×87×13 | 85×63.5 | 10 yrs | 0 to 40℃ | |
| E420WA3N | Black/White/Red | White | ● | ● | 300×400 | 105×87×13 | 85×63.5 | 10 yrs | 0 to 40℃ | |
| E420WA3 | Black/White/Red | White | – | – | 300×400 | 105×87×13 | 85×63.5 | 10 yrs | 0 to 40℃ | |
5.8″ A Series | E580WA4N | Black/White/Red/Yellow | White | ● | – | 480×648 | 135.5×110×9 | 119×88 | 10 yrs | 0 to 40℃ |
| E580WA3N | Black/White/Red | White | ● | – | 480×648 | 135.5×110×9 | 119×88 | 10 yrs | 0 to 40℃ | |
| E580WA9N | Full color | White | ● | – | 600×448 | 135.5×110×9 | 115×86 | 10 yrs | 0 to 40℃ | |
7.5″ A Series | E750WA4N | Black/White/Red/Yellow | White | ● | – | 480×800 | 180×121×13 | 163×98 | 10 yrs | 0 to 40℃ |
| E750WA3N | Black/White/Red | White | ● | – | 480×800 | 180×121×13 | 163×98 | 10 yrs | 0 to 40℃ | |
10.2″ A Series | E1020WA4N | Black/White/Red/Yellow | White | ● | – | 640×960 | 135.5×110×9 | 215.5×143.5 | 10 yrs | 0 to 40℃ |
| E1020WA3N | Black/White/Red | White | ● | – | 640×960 | 135.5×110×9 | 215.5×143.5 | 10 yrs | 0 to 40℃ | |
11.6″ A Series | E1160WA3N | Black/White/Red | White | ● | – | 640×960 | 266×190×9 | 244.5×163 | 10 yrs | 0 to 40℃ |
13.3″ A Series | E1330WA3N | Black/White/Red | White | ● | – | 680×960 | 298.3×225.5×9 | 275.5×195 | 10 yrs | 0 to 40℃ |
E-paper Labels B Series (4.2″, 7.5″) 4 models
| Series | Model | Display colors | Enclosure | NFC | LED | Resolution | Label size (mm) | Display size (mm) | Battery life* | Operating Temperature |
|---|---|---|---|---|---|---|---|---|---|---|
4.2″ B Series | E420WB4NP / E420BB4NP | Black/White/Red/Yellow | White + Blue | ● | ● | 300×400 | 104×87×10 | 85×63.5 | 10 yrs | 0 to 40℃ |
| E420WB3NP / E420BB3NP | Black/White/Red | White + Blue | ● | ● | 300×400 | 104×87×10 | 85×63.5 | 10 yrs | 0 to 40℃ | |
7.5″ B Series | E750WB4N | Black/White/Red/Yellow | White | ● | – | 480×800 | 177×124×13 | 163×98 | 10 yrs | 0 to 40℃ |
| E750WB3N | Black/White/Red | White | ● | – | 480×800 | 177×124×13 | 163×98 | 10 yrs | 0 to 40℃ |
E-paper Labels C Series + Freezer Models (1.54″–3.7″) 18 models
| Series | Model | Display colors | Enclosure | NFC | LED | Resolution | Label size (mm) | Display size (mm) | Battery life* | Operating Temperature |
|---|---|---|---|---|---|---|---|---|---|---|
1.54″ C Series | E154WC4N | Black/White/Red/Yellow | White | ● | ● | 200×200 | 44.5×36×12 | 27×27 | 6 yrs | 0 to 40℃ |
| E154WC3N | Black/White/Red | White | ● | ● | 200×200 | 44.5×36×12 | 27×27 | 6 yrs | 0 to 40℃ | |
| E154WC3 | Black/White/Red | White | – | ● | 200×200 | 44.5×36×12 | 27×27 | 6 yrs | 0 to 40℃ | |
2.1″ C Series | E210WC4N | Black/White/Red/Yellow | White | ● | ● | 224×168 | 70×34.5×12 | 36×27 | 10 yrs | 0 to 40℃ |
| E210WC3N | Black/White/Red | White | ● | ● | 224×168 | 70×34.5×12 | 36×27 | 10 yrs | 0 to 40℃ | |
| E210WC3 | Black/White/Red | Black | – | ● | 224×168 | 70×34.5×12 | 36×27 | 10 yrs | 0 to 40℃ | |
2.1″ Freezer Model | E210WC2NF | Black/White | White + Blue | ● | ● | 212×104 | 70×34.5×12.5 | 48.5×23.5 | 10 yrs | -25 to 25℃ |
| E210WC2F | Black/White | White + Blue | – | ● | 212×104 | 70×34.5×12.5 | 48.5×23.5 | 10 yrs | -25 to 25℃ | |
2.66″ C Series | E266WC4N | Black/White/Red/Yellow | White | ● | ● | 296×152 | 83×41×11 | 60×30.5 | 10 yrs | 0 to 40℃ |
| E266WC3N | Black/White/Red | White | ● | ● | 296×152 | 83×41×11 | 60×30.5 | 10 yrs | 0 to 40℃ | |
| E266WC3 | Black/White/Red | White | – | ● | 296×152 | 83×41×11 | 60×30.5 | 10 yrs | 0 to 40℃ | |
2.66″ Freezer Model | E266WC2NF | Black/White | White + Blue | ● | ● | 296×152 | 83×41×12 | 60×30.5 | 10 yrs | -25 to 25℃ |
| E266WC2F | Black/White | White + Blue | – | ● | 296×152 | 83×41×12 | 60×30.5 | 10 yrs | -25 to 25℃ | |
2.9″ C Series | E290WC4N | Black/White/Red/Yellow | White | ● | ● | 296×128 | 90×41×11 | 67×29 | 10 yrs | 0 to 40℃ |
| E290WC3N | Black/White/Red | White | ● | ● | 296×128 | 90×41×11 | 67×29 | 10 yrs | 0 to 40℃ | |
| E290WC3 | Black/White/Red | White | – | ● | 296×128 | 90×41×11 | 67×29 | 10 yrs | 0 to 40℃ | |
3.7″ C Series | E370WC4N | Black/White/Red/Yellow | White | ● | ● | 416×240 | 104×56×11.5 | 81.5×47 | 10 yrs | 0 to 40℃ |
| E370WC3N | Black/White/Red | White | ● | ● | 416×240 | 104×56×11.5 | 81.5×47 | 10 yrs | 0 to 40℃ |
Shelf-edge LCDs & Upright Displays 6 models
| Name | Model | Shelf | System | Color | Resolution | WiFi | Operating Temperature | Size (mm) | Power |
|---|---|---|---|---|---|---|---|---|---|
23.1″ Shelf-edge LCD | LCD-2310 | 60 cm shelf | Android | Full color | 1920×158 | ● | 0 to 50℃ | 597×62×18 | 12V adapter (Type-C) |
35″ Shelf-edge LCD | LCD-3500 | 90 cm shelf | Android | Full color | 3840×200 | ● | 0 to 50℃ | 889.2×60.9×26 | 12V adapter (Type-C) |
37″ Shelf-edge LCD | LCD-3700 | 90 cm shelf | Android | Full color | 1920×540 | ● | 0 to 50℃ | 923.6×285.6×58.4 | 12V adapter (Type-C) |
47.1″ Shelf-edge LCD | LCD-4710 | 120 cm shelf | Android | Full color | 3840×160 | ● | 0 to 50℃ | 1209×62.9×29.2 | 12V adapter (Type-C) |
10.1″ Single-sided Display | LCD-1010 | Upright / side-mount (NFC ●) | Linux | Full color | 800×1280 | ● | -20 to 50℃ | 243×150.1×15 | DIN-rail powered |
10.1″ Double-sided Display | LCD-1010-D | Upright / side-mount (NFC ●) | Linux | Full color | 800×1280 | ● | -20 to 50℃ | 243×150.1×15 | DIN-rail powered |
* Battery life is based on 2 updates per day. Specifications are subject to the manufacturer's latest release.













