4.2 inch Wireless E-ink Display Passive NFC Color E-Paper Screen Label ESL , No Battery, GDN042R
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This NFC pendant does NOT work with Samsung and Google Pixel phones due to their restricted NFC implementations. Please check compatibility before purchase.
The GDN042R is a 4.2-inch 3-Color E Ink display (black/white/red) utilizes passive NFC technology, requiring no battery, charging, or maintenance. Housed in a sleek, lightweight ABS case, it's perfect for smart shelf labels or tags. Easily updated via Android smartphones using our dedicated app – just tap and go!

Battery‑free, instant refresh, and built for harsh environments.
Zero battery replacement needed – permanent solution to battery life issues. Ideal for restricted power environments and reduced maintenance costs.
Zero MaintenanceAndroid NFC compatibility, update content in 15 seconds. Credit card-style tap refresh, no specialized equipment needed.
Plug & PlayABS protective casing with paper‑like e‑ink display. Lightweight yet durable construction, operational from -25°C to 70°C.
Built ToughChoose the workflow that fits your deployment — Mobile or PC.
Update via NFC‑D3‑Pro App
Professional deployment with GDPN02
IMPORTANT: Reader Compatibility – Do Not Mix
DMPENRAB1 series readers and GDPN02 series readers are NOT interchangeable. Please ensure the reader matches your tag model.
DMPENRAB1 ↔ DMP series | GDPN02 ↔ GDN series
📌 Software & Firmware: Use the APP version specified on your product page. DMN / GDN apps are NOT interchangeable.
📱 NFC Usage Note: For optimal experience, avoid using the device directly on metal surfaces, as metal may block or weaken the NFC signal.
Every parameter engineered for reliability and seamless integration.
| Parameter | Value |
|---|---|
| Part Number | GDN042R |
| Power Input | NFC power supply |
| Update image time | 15s |
| Size | 4.2" |
| Update power | ≤20mW |
| Display Color | Black, White, Red |
| Resolution | 400 × 300 |
| Update Image Method | NFC Update Image |
| Operation temperature | 0℃ ~ 40℃ |
| Outline Size (mm) | 104.8 × 94 × 10.18 |
| Language | Default English |
| Storage temperature | -25℃ ~ 70℃ |
| Display Size (mm) | 84.8 × 63.6 |
| Weight | about 70g |
| Operating humidity | 40% ~ 70% |
Precise dimensions for your enclosure and PCB layout.
From retail shelves to logistics — the versatility of NFC e‑paper.
Supports remote batch price updates (with wireless communication modules), improving pricing efficiency.
Durable and impact-resistant, suitable for frequent handling in warehousing environments.
Customizable patterns and text via apps, supporting black-and-white line drawings for niche creative needs.
Low power, long life, and a smaller footprint — for a better tomorrow.
Each display saves ~3,000 sheets annually. Join 15,000+ businesses reducing paper waste with ePaper solutions.
95% recycled materials with FSC‑certified packaging. 100% plastic‑free protective materials.
90% less energy than LCDs. Annual CO₂ reduction equivalent to 50 mature trees.
Everything from datasheets to sample code — all in one place.
Expert support, custom solutions, and fast turnaround.
📧 Email us
We offer front‑light, touch panel, and custom FPC options.
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