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2.4G 3.5 inch 4-Color E ink Label eRetail3.2 Electronic Price Tag System in Retail Solution
- group name
- Retail Electronic Shelf Labels Solution
- Min Order
- 1 piece
- brand name
- Sertag Electronic shelf labels Manufacturer
- model
- Electronic Shelf Label SETRV3-0350-86
- Nearest port for product export
- Dalian, Shenzhen, Hongkong
- Delivery clauses under the trade mode
- FOB, CIF
- Acceptable payment methods
- T/T
- update time
- Sat, 21 Mar 2026 03:48:23 GMT
Paramtents
Dimensions(mm) 100.99x49.79x12.3
Display Technology Full graphic E-ink Display
Resolution 384x184
Operating Temperature 0~40℃
Battery 2 x CR2450
Communication Distance Within 30m (Open distance: 50m)
Packging & Delivery
-
Min Order1 piece
Briefing
The 3.5 inch electronic shelf label uses 4-colors e-ink display, support NFC, wireless firmware update, 8 usable pages.
Detailed
Sertag's 3.5 inch four colors electronic price label use a black, white, red, and yellow e-paper display, designed to elevate retail operations with unparalleled clarity and versatility. It uses low power e-ink technology, making it easy to highlight promotional prices, warnings and product information. It has a high resolution with 384x184, the label delivers sharp and clear visuals for text, barcodes, and images.
Using 2.4G wireless communication, the electronic shelf label can be remotely updated through the ESL base station, allowing retailers to change prices across hundreds or thousands of products in seconds. Compared with traditional paper price tags, this ESL retail solution significantly reduces manual labor, eliminates pricing errors, and improves operational efficiency.
With a 30 meters communication range indoors and reliable wireless connectivity, the label can be easily deployed in supermarkets, convenience stores, pharmacies, and specialty retail stores. The wide 170° viewing angle ensures that price information remains clear from different directions, improving the shopping experience for customers.
Why Choose 3.5 inch 4-Colors Electronic Price Label ?
The 3.5 inch electronic price label is an ideal size for many retail shelf environments. Its compact design makes it suitable for narrow shelves while still providing clear product and price information.
The four-color e-ink display allows retailers to highlight important information such as discounts, promotions, or warnings using red and yellow accents. This makes promotional messages more visible compared with traditional black-and-white labels.
Combined with 2.4G wireless communication, the label offers reliable data transmission and efficient centralized management. Retailers can deploy large numbers of labels while maintaining stable connectivity and long battery life.
● Four-Color E ink Display
The vibrant black, white, red, and yellow display ensures high visibility, making it perfect for highlighting promotions, warnings, or critical product information.
● Robust Communication Range
Operating in the 2.4~2.48GHz frequency band, the label offers a communication distance of up to 30 meters indoors and up to 50 meters in open areas.
● Multi-Page Display
Supports up to 8 pages, enabling multiple sets of information to be displayed and easily accessed.
● Durable and Reliable
With an IP65 protection rating, the label is waterproof, dustproof, and built to withstand challenging environments.
eRetail3.2 System ESL | eRetail 3.1 System ESL | Paper Price Label |
| ✔ Reduce Cost | ✔ Reduce Cost | ✘ High Cost |
| ✔ Wireless Update | ✔ Wireless Update | ✘ Can’t Update |
| ✔ Eco-Friendliness | ✔ Eco-Friendliness | ✘ Waste Paper |
✔ Reducing Manual Labor | ✔ Reducing Manual Labor | ✘ Labor Intensive |
✔ NFC | ✘ NFC | ✘ |
⭐ Support multi-page display | Single page display | ✘ |
⭐ 4-Colors/ 3-Colors/ Monochrome | 3-Colors/ Monochrome | ✘ |
| ⭐ 30m communication distance (Open distance: 50m) | 12~15 communication radius | ✘ |
How do 2.4G Electronic Shelf Labels Work?
Electronic shelf labels (ESL) use wireless communication technology to connect digital price tags with a central management system. When a retailer updates a product price in the system, the information is automatically transmitted to the corresponding electronic label through a base station.
This process allows stores to update thousands of prices simultaneously without manual replacement of paper tags. The E-ink display ensures that the information remains visible even without power consumption, as energy is only required during screen refresh.
First, the ESL label management software on the server processes the information for each item and packages it into data packets containing pricing and product details.
Next, the software transmits these data packets to the base station via a 2.4 GHz wireless signal. After receiving the packets, the base station forwards them to the corresponding electronic shelf labels (ESLs) to update the price displayed on the screen. Each ESL has a unique identification code, allowing it to receive and display the specific information associated with the corresponding product. Data can be sent either to all label devices simultaneously or to selected labels individually.
This communication process enables ESL displays to update automatically whenever product prices are changed in the retailer's ERP or POS system.
In addition, store associates can use a smart mobile terminal to review and manually adjust pricing or product information whenever necessary.
ESL Base Station for 2.4G Electronic Shelf Labels
ESL Base Station for eRetail3.2 System
SETAP05 is the corresponding base station of the electronic shelf label of the eRetail3.2 system. Its main function is to act as a communication bridge between the electronic shelf label and the backend management system.
Electronic Shelf Labels Application
⭐ Retail Stores: Display dynamic pricing, promotions, and product details.
⭐ Warehouses: Provide item identification and storage details.
⭐ Industrial Use: Highlight critical instructions or safety information.
⭐ Public Utilities: Display schedules or public notifications.
