Sertag 4.2-inch Bluetooth e-paper digital label, 400x300 resolution, real-time wireless updates, DIY design.
Key Features
- Bluetooth Connectivity – Easily update content from your smartphone using our mobile app.
- Ultra-Low Power E-Ink Display – High-contrast, paper-like display that's easy on the eyes and battery-friendly.
- Customizable Content – Show prices, QR codes, promotions, or barcodes – all editable in the app.
- LED Indicator – Use blinking lights to highlight or identify specific labels (optional feature).
Package Includes
1 × 4.2 inch E-paper Smart Retail Label No Base Station BLE ESL
1 × 4.2 inch BLE Electronic Price Tags SETPB0420R Specification
1 × Bluetooth ESL User Guide
Product Specifications
| Product Model | SETPB0420R | Display Technology | E-ink |
|---|---|---|---|
| Working Frequency | 2.4G | Dimensions (mm) | 104.5 × 87.5 × 12.7 |
| Display Area (mm) | 84.8 × 63.6 | Resolution | 400 × 300 |
| Pixel Size (mm) | 0.212 × 0.212 | Battery Capacity | 2400mAh (CR2450*4) |
| Working Temperature | 0~50℃ | Battery Life | 3–5 years |
| Communication Radius | 10m | Compatible Devices | Android / iPhone / Tablet |
| Visual Angle | 180° | Display Color | Black, White, Red |
| OTA Firmware Update | Yes | Supported Content | Text, Picture, QR Code, Barcode |
| Template Design | Yes | ||
Application
- Smart retail shelf labeling
- DIY smart storage labels
- Home pantry or tool organization
- Displaying QR codes, NFC tags, or custom notes
4.2 inch Bluetooth e-paper digital label, no need base station, are set to revolutionize the way you manage pricing and product information.
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