4.2" ESL E Ink Tag - Smart Retail Automation | Energy-Efficient E-Paper Display | Wholesale Label Solution
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3-Color Label Monochrome Label(Requires GW) 4-Color Label(Requires GW) Four Colors/Black Frame Gateway Version
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Description

4.2" E-Paper Digital Price Tag

Energy-Efficient E-Paper Display | Wholesale Label Solution

This 4.2-inch smart tag features a clear and vibrant e-paper display, available in monochrome, tri-color, and four-color options. It is ideal for retail stores, supermarkets, and other commercial spaces, offering easy remote updates through a gateway or smartphone Bluetooth. This allows you to display any content you choose effortlessly. Energy-efficient and durable, these tags can be customized to match your store's branding and come in various sizes. They provide a cost-effective and sustainable solution for modernizing your pricing strategy and reducing operational costs.

Version Selection

Discover the perfect solution for your business needs with our range of smart label versions. Each designed with specific environments and use cases in mind.

ET0420-87

Gateway Version

Four Colors/White Frame


High-resolution display
Centralized management
Real-time updates
Long-range connectivity

ET0420B-87

Gateway Version

Four Colors/Black Frame


Sleek black design
Centralized management
Energy-efficient display
Easy installation

ET0420-40

Smartphone APP Version

Tri-Color Display


Mobile app control
Seamless integration
On-the-go updates
User-friendly interface

ET0420-43

Gateway Version

Waterproof & Durable


IP67 Water & dust resistant
Gateway & App compatible
Industrial-grade durability
Wide temperature range

ET0420-42

Gateway Version

Fast Update & Performance


High-speed refresh
Extended temperature range
Optimized for dynamic content
Energy-efficient operation

Core Technologies

Premium Hardware Performance

  • Ultra-Clear E Ink Display: 4.2" screen with 400×300 resolution, tri/four-color options, glare-free 180° viewing.
  • 7-Year Battery Life: Coin-cell powered, wireless Mesh tech for zero maintenance.
  • Rugged Design: IP65/IP68 durability, built for cold storage/outdoor harsh conditions.
  • Fast Refresh Technology: Partial refresh for quick updates without full screen flashing.

Smart Management Ecosystem

  • Real-Time Sync: Update prices/promotions/inventory instantly across thousands of tags via wireless gateway.
  • ERP/POS Integration: Optional temp/humidity sensors for perishables.
  • Custom Branding: Flexible sizes, colors, and templates to align with store aesthetics.
  • Cloud-Based Management: Access and control your tags from anywhere with an internet connection.

Product Drawing


 

Breakdown of ESL Solution




 

Technical Specifications

Technical Specifications
Outline Dimension 99.16mm(H)×89.16mm(V)×12.3mm(D)
Weight 82g
Operating temperature 0~40℃
Operating humidity 45%~70%RH
Protection rating (Optional) IP54/IP65/IP68
Display Size 4.2 inch
Resolution 400(H)×300(V)
Batteries CR2450 x 3
Battery life time Up to 7 years (industry leader)
Features NFC (Optional), Wireless Firmware Update, 8 Usable Pages
Compliance CE, RoHS, FCC, MIC, SRRC
Packaging Information Quantity per Box: 180 pcs
Gross Weight per Box: 15.76 kg
Outer Box Dimensions: 390mm x 350mm x 240mm

Mounting Solutions

 

Application Scenarios

Retail Stores

Dynamic pricing and promotions

Supermarkets

Fresh food pricing and inventory

Warehouses

Inventory management and tracking

Healthcare

Patient information and room signage

Sustainable Innovation

97%

Recyclable Packaging

7 Years

Battery Lifespan

100k+

Paper Labels Saved

Resources

Thank you for your interest in our product. We could provide front light, touch screen, and other accessories for you. For more information, please refer to the relevant manual available in our Library or visit our official website at www.good-display.com.

If you need any further assistance or have any other questions, please feel free to contact us. We sincerely invite you to send your inquiries to our email at buyepaper@good-display.com.

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