| Model Name/Number | WL-20 |
| Dimension W x H x D | 65 x 133 x 21 mm |
| Battery Backup | Optional |
| Language | English |
| Power Source | Power Adapter |
| Communication | Wi-Fi , USB-Host |
| Storage Capacity | Fingerprint Capacity | 1000 |
| Finger Algorithm | Finger VX10.0 | |
| Record Capacity | 50,000 | |
| Display | 2.8-inch TFT Screen | |
| Communication | Wi-Fi , USB-Host | |
| Push Data | Yes | |
| Standard Functions | SSR, DST, Scheduled-bell, Self-Service Query, Automatic Status Switch, T9 Input 9 digit user ID | |
| Optional Functions | WL20 | |
| Power Supply | DC 5V 0.8A | |
| Operating Temperature | 0°C to 45°C | |
| Operating Humidity | 20%-80% | |
| Dimension | 65 x 133 x 21 mm |