Warehouses are becoming increasingly digital, but many picking operations still rely on paper labels or traditional shelf identification. As order volumes grow and workflows become more complex, warehouses need smarter tools that help operators identify locations faster, confirm tasks more accurately, and communicate with warehouse management systems in real time. Digital picking labels have become an important part of modern paperless warehouse operations, improving visibility, reducing manual errors, and supporting higher picking efficiency.
To better support different warehouse scenarios, MinewTag has developed a complete portfolio of button-enabled e-paper picking labels. Today, we're excited to introduce our newest member—the WT042A, alongside three existing models that give customers greater flexibility for different storage environments.
WT042A: Built for High-Efficiency Multi-Order Picking
The WT042A is MinewTag's latest 4.2-inch smart picking label, specifically designed for warehouses handling multiple picking tasks simultaneously.

Compared with smaller picking labels, the larger display offers more room for essential information such as SKU, quantity, order number, storage location, barcode, and task status—allowing warehouse operators to view critical data at a glance.

Key highlights include:
• 4.2-inch black & white e-paper display
• Fast refresh in approximately 3 seconds
• Two confirmation buttons for flexible workflow interaction
• LED indicator for visual task guidance
• Bluetooth 5.0 wireless communication
• Replaceable battery with years of service life under typical usage
• IP65 protection, suitable for demanding warehouse environments
• Operating temperature from -15°C to 60°C
• Support for QR codes, barcodes, and customizable display templates
Designed for shelving, bins, and warehouse locations, the WT042A helps simplify picking confirmation while improving operational visibility.

One Product Family, Multiple Warehouse Scenarios
Different warehouse applications require different interfaces. That's why MinewTag offers multiple button-enabled label options within the same ecosystem.
WT029A — Three-Button Smart Picking Label
The WT029A features a compact 2.9-inch display, three independent buttons, and three LED indicators, making it suitable for workflows requiring multiple confirmation options. Its built-in magnetic mounting design also enables quick installation on metal shelving.
Ideal for:
• Multi-step picking confirmation
• Warehouse shelving
• Manufacturing logistics
• Distribution centers

STag29A — One-Button Smart Label
The STag29A introduces a large customizable round button, providing a simple and intuitive interaction experience.
It is well suited for scenarios where operators only need a single confirmation action, such as document management, archive tracking, material identification, or lightweight warehouse workflows.

STag29AB — Fast Refresh Button Label
The STag29AB focuses on high-speed content updates, refreshing display information within seconds while maintaining the low power consumption advantages of e-paper technology.
It is an excellent choice for warehouses where task information changes frequently throughout the day.

Smarter Picking Starts with the Right Label
Whether you're upgrading from paper labels or expanding an existing warehouse automation system, MinewTag's button-enabled e-paper labels provide a flexible way to digitize warehouse identification and picking processes.
With multiple display sizes, button configurations, and mounting options available, businesses can choose the model that best fits their operational needs while benefiting from the same low-power e-paper technology and wireless management platform.
The launch of the WT042A further expands the MinewTag smart warehouse portfolio, giving customers an even more capable solution for high-efficiency, multi-order picking environments.
Looking for the right smart picking label for your warehouse? Contact MinewTag to learn more about our complete warehouse e-paper solution.






