| ModelĀ Name | Bio31M |
| Material | Electro-Silicon |
| CPU | 280MHzĀ DSP |
| Flash | 32Ā MB |
| SoC | RTOS |
| EncryptedĀ FingerprintĀ Data | YES |
| WaterĀ Splash | No |
| Dry,Ā Wet,Ā orĀ RoughĀ Fingerprints | WorkĀ well |
| PowerĀ Consumption | 5V:200mAĀ Scanning;5V:100mAĀ idleĀ (waitingĀ forĀ finger) |
| LiveĀ FingerprintĀ Detection | No |
| LED | None |
| PowerĀ Voltage | 5VĀ (USB)Ā /Ā 3.3VĀ (TTL-RS232) |
| PowerĀ Current | 200mA |
| Communication | UARTĀ (115200bpsĀ /Ā TTL3.3V)Ā /Ā USBĀ 2.0 |
| InterfaceĀ Socket | MolexĀ 51021-Ā 0700Ā (Ā 7Ā pin;Ā 1.25Ā mm) |
| ImageĀ Resolution | 508dpi |
| EffectiveĀ CollectingĀ Area | 10.4*14.0mm |
| ImageĀ Size | 208*288pixel |
| Module Size | Motherboard:Ā 42.0*26.0*5.08mmĀ (L*W*H) |
| Sensor:34.06*20.4*2.47mm(L*W*H) | |
| ImageĀ Format | RAW,Ā BMP,Ā JPG |
| Template | ZKFingerĀ V10.0Ā ;Ā ISO19794-2Ā ;Ā ANSI-378 |
| TemplateĀ Size | 1-Ā 4KBĀ (ZKFingerĀ V10.0);1568Ā BĀ (ISOĀ 19794-2) |
| GrayĀ Level | 256 |
| Operating Environment | -20 °C ~ +50 °C; 90% r.h. |
| ISO/ANSIĀ Support | ISO-19794-2/4Ā ANSI-378 |
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