Specification :
| Material | Zinc alloy |
| Power supply | 4.5 ~ 6.5V（4 pcs AA alkaline batteries） |
| Blue tooth standard | 4.1 BLE |
| Support phone system | Android 4.3/IOS 7.0 above |
| Alarm voltage | 4.8V ±0.2V |
| Static current | ≤60μA |
| Dynamic current | ≤200 mA |
| Operating temperature | -20 ~ 70°C |
| Operating humidity | 20 ~ 93%RH |
| Opening time | around 1.5 seconds |
| FAR(False Acceptance Rate) | <0.001% |
| FRR(False Reject Rate) | <1.0% |
| Fingerprint capacity | 120 |
| Mobile phone app | no limitation[TT LOCK (Blue tooth) version |
| Card (Mifare1 card) capacity | 200 |
| APP send password | 150 pcs |
| Custom password | 150 pcs |
