The ALOCK D120 Economy Fingerprint Smart Door Lock is one of the company’s affordable and best-selling models. It supports fingerprint, PIN code, and RFID card access, combined with a steel lock body for enhanced security.
This model belongs to ALOCK’s offline fingerprint smart lock series and does not require a mobile application.
It includes Fake PIN, Dual Verification, Privacy Lock (Night Lock), a low-power AA battery system, an emergency Micro USB power port, and a mechanical key for backup access.
Because the product uses Chinese-made components, like many similar smart locks available in the market under various brands, it is not suitable for outdoor installation or outdoor use.
The ALOCK D120 Economy Smart Lock was introduced to the market in February 2026. It quickly became one of the company’s popular products thanks to the trusted ALOCK brand and its well-known after-sales service and technical support.
The lock features a low battery warning. If the batteries are fully discharged, you can temporarily power the lock using a power bank through the emergency charging port, unlock it with your fingerprint or PIN code, and then replace the batteries.
In emergency situations, the lock can also be opened using the supplied mechanical key.
This model does not support connection to remote controls, smart home systems, video intercom systems, or fire alarm systems.
ALOCK D120 Fingerprint Smart Door Lock Offline Features
- Color: Black
- Material: Aluminum
- Handle Dimensions: 31 × 6.5 × 3 cm
- Lock Body Dimensions: 15 × 9 cm
- User Capacity: Up to 300 users
- Fingerprint Capacity: 100 fingerprints
- PIN Code Capacity: 100 PIN codes
- Card Capacity: 100 RFID cards
- Chinese-made Components
- 2-Year Electronic Parts Replacement Warranty
- 7-Year After-Sales Service
- Withstands Over 1200 Newtons of Direct Pressure
- Power Supply: 4 × 1.5V AA Batteries
- Mechanical Key for Emergency Access
- Low Battery Warning System
- Incorrect PIN/Card Entry Alarm
- Passage Mode for free access without a PIN or card during busy periods such as parties, office peak hours, and similar situations
- Privacy Lock (Night Lock)
- External Micro USB Emergency Power Port
- Multi-Administrator Management (Up to 9 Administrators)
ALOCK D120 Fingerprint Smart Door Lock Technical Specifications
| Model | D120 |
| Color | Black |
| Weight | 3 kg |
| Handle Dimensions | 31 × 7 × 3 cm |
| Lock Body Dimensions | 21 × 9 cm |
| Handle Material | Aluminum |
| Lock Material | Steel |
| Fingerprint Capacity | 100 Users |
| PIN Code Capacity | 100 PIN Codes (6–12 digits) |
| Card Capacity | 100 × 13.56 MHz MIFARE Cards |
| Dual Verification | Yes |
| Indoor Digital Viewer | No |
| Remote Control | No |
| Mechanical Key | Yes (Super B) |
| Access Log | No |
| Intercom / Remote Connectivity | No |
| Fake PIN | Yes |
| Passage Mode | Yes |
| Multi-Administrator, Time & Date Settings | No |
| Low Battery Warning | Yes |
| Incorrect Fingerprint / PIN / Card Alarm | Yes |
| Touch Doorbell Key | Yes |
| Heat & Moisture Resistance | No |
| Internal Power Supply | 4 × 1.5V AA Batteries |
| External Emergency Power | Micro USB Port |
| Privacy Lock (Night Lock) | Yes |
| Compatible Door Types | Wooden, Security, Multi-Lock & Fire-Rated Doors |
| Silent Mode | Yes |
| Mobile Online Technology | No |
| Accessories Included | RFID Cards, Installation Guide, Mounting Screws & Rods, Mechanical Keys, Lock Body, Strike Plate, Mechanical Cylinder with Two Keys, Warranty Card |
| Warranty | 2 Years from Purchase Date |
| Touch Doorbell | Yes |
| After-Sales Service | 7 Years |
| Country of Manufacture | Iran – ALOCK Lock Industries |
| Fingerprint Scanner | 360° Capacitive Sensor |
| Block Mode | Yes |
| Emergency Power Supply | Yes |
Shipping depends on destination and country, and is the responsibility of the customer.
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