| item | D4 Fingerprint Smart Door Lock |
| Place of Origin | China |
| App Name | Tuya smart(without camera) or Usmartgo(with camera) |
| Brand Name | ONE-LOCK |
| Model Number | D4 |
| Certification | CE,FCC,ROHS |
| Special Features | Built-in Camera, Built-in Doorbell, Built-in Screen, NIGHT VISION, Tamper Alarm, Two-way Audio, WIFI, APP |
| Data Storage | Cloud, tuya app record |
| Application | Home Security |
| Unlock way | APP +Fingerprint + Password + Card + Key |
| Material | Zinc Alloy |
| Product Name | Smart Home Door Lock |
| Color | Red Bronze+Black+Gray |
| Power supply | 7.4V 5000mAh Lithium-ion Rechargeable Batteris |
| Weight(kgs) | 4.5Kg |
| Size | 76*420mm |
| Door thickness | 40mm - 120mm |
| Work Temperature | -20-70 |
