WiFi 4.2 inch E ink Store Price Tags Interface Integration Electronic Shelf Label Supermarket

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Categories	Retail Electronic Shelf Labels Solution
Brand	Sertag Electronic shelf labels Manufacturer
Model	Wi-Fi Digital Price Tag SETPW0420_V2
Display Size	4.2inch
Communication	2.4G WiFi b/g/n
Battery	AA*4
Battery Life	Up to 1 year of autonomy (For 4 refresh per day)
Working Temperature	0~40℃
Light & Button	1 x tri-color LED & 2 x buttons & 1 x reset button
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Detail Information

WiFi 4.2 inch E-ink Store Price Tags for Supermarket

This 4.2 inch tri-color WiFi e-ink store price tag combines wireless connectivity, LED-button functionality, and interactive features in one device, offering a more flexible, cost-effective, intelligent smart retail solution, helping stores digitize pricing, improve operational efficiency, and enhance the in-store customer experience.

Powered by standard AA batteries, the 4.2 inch e-ink price tag delivers long-lasting performance with ultra-low power consumption. The tri-color e-ink display (black, white, red) provides high-contrast, paper-like readability, ensuring that prices, promotions, and product information remain clear and consistent across all shelve. In addition, the built-in LED indicators and buttons enable interactive retail applications such as promotional guidance, staff assistance, or smart shelf management, further improving store efficiency.

With WiFi connectivity and no need for a base station, retailers can quickly deploy the ESL system across shelves without complex infrastructure. This makes it especially suitable for supermarkets, chain stores, and specialty retail shops looking for a flexible and scalable pricing solution.

Why Choose 4.2 inch E-ink Store Price Tag?

4.2 inch WiFi E-ink Price Tag

This video shows the refresh status of a 4.2 inch WiFi electronic shelf label.

💻 Real-time Price Updates for Retail Efficiency

Instantly update prices, promotions, and product details across all shelves via WiFi, eliminating manual label replacement and ensuring pricing accuracy at all times.

🔋 Widely Available Batteries – No Special Maintenance Required

AA batteries are globally available and easy to source, eliminating the need for dedicated charging equipment or maintenance planning.

📶 No Base Station Required

Direct WiFi communication removes the need for additional gateways, making installation faster and more flexible—ideal for both single stores and multi-store chains.

📃 Low Power Consumption E-ink Display

The e-ink screen consumes power only when updating content, allowing extended battery life while maintaining clear, paper-like readability.

💡 Built-in LED Lights & Buttons

Integrated multi-color LED indicators and physical buttons enable pick-to-light, task confirmation, or status alerts, improving operational efficiency in retail and warehouse scenarios.

WiFi Electronic Shelf Label System Architecture

The system uses WiFi to connect each electroinc label directly to the management platform—no gateway required. This allows retailers to update prices in real time, reduce setup complexity, and easily scale across stores.

🛒For Sample or Individual Purchase

This product can be purchased directly from our official consumer store.

For project-based or large-quantity orders, please contact us.

👉Click Here

Product Model	SETPW0420_V2	Display Technology	Tri-colors E-ink
Communication	2.4G WiFi b/g/n	Screen Resolution	400*300
Dimensions (mm)	104.95 * 95.93 * 15.2	Display Area (mm)	84.6*63.4
Pixel Size (mm)	0.212*0.212	Working Temperature	0~40℃
Display Color	Black, white, red	Battery Capacity	AA*4
Visual Angle	180°	Battery Life	1 year (4 refreshes/day)
Support Remote Control	Yes	Support Interface Docking	Yes
Wireless Firmware Update	Yes	Light & Button	1 x tri-color LED & 2 x buttons & 1 x reset button
Supported Content Format	Text, picture, QR code, barcode