| Model Name | SLK20R |
| Material | Optical |
| CPU | 280MHz DSP |
| Flash | 32 MB |
| SoC | RTOS[image out only] |
| Image Quality | 2 million pixels CMOS |
| Encrypted Fingerprint Data | YES |
| Sunlight Operation | Yes, Dark field and Automatic Gain / Exposure |
| Water Splash | YES |
| Dry, Wet, or Rough Fingerprints | Work well |
| Power Consumption | 5V:200mA Scanning;5V:60mA idle (waiting for finger) |
| Live Fingerprint Detection | YES |
| LED | White |
| Product Certifications | FCC, CE, RoHS, PIV |
| Power Voltage | 5V (USB) |
| Power Current | 200mA |
| Communication | USB 2.0 / USB1.1 |
| Interface Socket | USB Type A |
| Image Resolution | 500~1000 dpi |
| Effective Collecting Area | 15.24 * 20.32 mm (FAP20) |
| Collecting Area | 16.5 * 23 mm |
| Image Size | 300 * 400 pixel (FAP20 ) |
| Dimension | 49 * 44 * 20.1mm (L*W*H) |
| Image Format | RAW, BMP, JPG |
| Template | ZKFinger V10.0 ; ISO19794-2 ; ANSI-378 |
| Template Size | 1- 4KB (ZKFinger V10.0);1568 B (ISO 19794-2) |
| Gray Level | 256 |
| Weight | 0.12kg |
| Operating Environment | -20 °C ~ +50 °C; 90% r.h. |
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