| Basic Parameters | |
|---|---|
| Model | E-J42 |
| Dimensions | 100.2 × 92.3 × 12.3 mm |
| Color | White |
| Weight | 100 g |
| Operating Temperature | 0°C–40°C |
| Operating Frequency | 433–470 MHz |
| Communication Distance | 100 m (tested in open environment; actual distance varies by environment) |
| Update Speed | Approx. 800 labels/hour |
| LED | Supports 7 colors, programmable control for on/off and duration |
| Button | Supported, with button event feedback |
| Display | |
|---|---|
| Display Technology | Dot Matrix E-Ink (EPD) |
| Screen Size | 4.2 inches |
| Display Colors | Black, White, Red |
| Display Dimensions | 84 × 63 mm |
| Resolution | 400 × 300 pixels |
| Pixel Density | 120 DPI |
| Contrast Ratio | 8:1 |
| Viewing Angle | 170° |
| Display Capabilities | Supports any language, fonts, font sizes, barcodes, QR codes, etc. |
| Battery | |
|---|---|
| Battery Parameters | 3V CR2459 button battery × 6, 3600 mAh |
| Continuous Use Time | Approx. 5 years (2 updates/day) |
