---
product_id: 547087252
title: "Fingerprint Door Lock，Smart Door Knob, Smart Biometric Door Lock Fingerprint Door knob with App Control Suitable for Bedroom,Utility Room,Apartments Offices,Hotels(Black)"
brand: "hei liang"
price: "102 Lei"
currency: RON
in_stock: false
reviews_count: 8
url: https://www.desertcart.ro/products/547087252-fingerprint-door-lock-smart-door-knob-smart-biometric-door-lock
store_origin: RO
region: Romania
---

# App control with real-time access logs 0.5s ultra-fast fingerprint unlock Easy no-wiring installation Fingerprint Door Lock，Smart Door Knob, Smart Biometric Door Lock Fingerprint Door knob with App Control Suitable for Bedroom,Utility Room,Apartments Offices,Hotels(Black)

**Brand:** hei liang
**Price:** 102 Lei
**Availability:** ❌ Out of Stock

## Summary

> 🔐 Unlock the future of security with a touch—because your door deserves smart protection.

## Quick Answers

- **What is this?** Fingerprint Door Lock，Smart Door Knob, Smart Biometric Door Lock Fingerprint Door knob with App Control Suitable for Bedroom,Utility Room,Apartments Offices,Hotels(Black) by hei liang
- **How much does it cost?** 102 Lei with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/547087252-fingerprint-door-lock-smart-door-knob-smart-biometric-door-lock)

## Best For

- hei liang enthusiasts

## Why This Product

- Trusted hei liang brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Withstand:** 500-pound impact-resistant stainless steel & aluminum alloy frame keeps your space secure.
- • **Perfect for Modern Living:** Ideal for bedrooms, offices, Airbnb, and hotels—control access anytime, anywhere.
- • **Seamless Smart Management:** Manage up to 20 fingerprints, set temporary guest codes, and get intrusion alerts via app.
- • **Triple-Layered Smart Security:** Fingerprint, app control, and hidden mechanical keyhole for unbeatable protection.
- • **Effortless Installation & Charging:** Fits standard US doors with no wiring; rechargeable battery with low-battery alerts.

## Overview

The HEI LIANG HL-1 Smart Biometric Door Knob combines ultra-fast 0.5-second fingerprint recognition, encrypted app control, and a hidden mechanical keyhole for triple-layer security. Crafted from impact-resistant stainless steel and aluminum alloy, it fits standard US doors and supports up to 20 fingerprints. With real-time access logs, temporary guest codes, and intrusion alerts via Bluetooth app, it’s perfect for homes, offices, and rental properties. Easy to install with no wiring and powered by a rechargeable battery with low-battery warnings.

## Description

Full description not available

## Features

- 【3-in-1 Smart Access】Our Smart Door Knob provides fingerprint recognition (0.5s fast unlock), encrypted app control via WiFi/Bluetooth, and a hidden mechanical keyhole - triple security layers adapt to your lifestyle while maintaining 24/7 home protection.
- 【Stylish and Durable Construction】This smart door handle features a 500-pound impact-resistant stainless steel and aluminum alloy frame to resist violent attacks. The tamper-proof design combines a classic round door handle shape with a modern LED indicator and successful unlock confirmation.
- 【Biometric Security System】The door lock has biometric capabilities and supports App control, which allows for easy fingerprint management. You can view unlock records, automatic locks, traffic patterns, and security locks through the App, which can prevent unwanted people from entering your room and control your home security. 20 fingerprints can be stored. It can prevent accidental activation by children/pets.
- 【Smart Life and Management】Designed with advanced biometric technology, this smart door handle automatically locks within 5 seconds and syncs real-time access logs to your smartphone. Remotely create/delete fingerprints, set temporary access codes for guests, and receive intrusion alerts through the companion app. (Wi-Fi settings require purchasing a gateway for networking). Suitable for Airbnb hosts and property managers, create time codes that expire automatically (12 hours/3 days/1 week options). Monitor real-time access through the app's encrypted activity log - perfect for verifying cleaner schedules or tenant compliance.
- 【Convenient Charging & Easy Installation】Designed for 1.18"-2.17" thick US standard doors (wood/steel/fireproof). No wiring required - just replace the existing door handle with the included template and tools. Refer to the instructions for installation and follow the "UP" sign. The fingerprint door lock has a built-in 400mAh rechargeable battery, which takes 3 to 4 hours to fully charge (USBA-TypeC cable required). Automatic low battery warning activates at 15% capacity. Features visual battery display and low battery alarm.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | HEI LIANG |
| Special Feature | Easy to Install |
| Lock Type | Biometric |
| Item dimensions L x W x H | 9.29 x 2.99 x 2.99 inches |
| Material | Zinc |
| Recommended Uses For Product | Bedroom doors, cloakroom doors, apartments, offices, hotels |
| Style | Smart Door Knob |
| Color | Black |
| Number of Pieces | 1 |
| Finish Type | Polished |
| Included Components | Lock And Key |
| Controller Type | Android, Hand Control, Mechanical knob |
| Shape | Round |
| Item Weight | 1.49 Pounds |
| Control Method | App |
| Connectivity Protocol | Bluetooth |
| UPC | 758984224249 |
| Model Name | HL Knob Lock 1 |
| Manufacturer | HEI LIANG |
| Part Number | SQ-1 |
| Item Weight | 1.49 pounds |
| Product Dimensions | 9.29 x 2.99 x 2.99 inches |
| Item model number | HL-1 |
| Batteries | 1 AAAA batteries required. |
| Size | 2.99*3.22 |
| Finish | Polished |
| Item Package Quantity | 1 |
| Special Features | Easy to Install |
| Batteries Included? | No |
| Batteries Required? | Yes |
| Battery Cell Type | Lithium Ion |

## Product Details

- **Brand:** HEI LIANG
- **Special Feature:** Easy to Install
- **Lock Type:** Biometric
- **Item dimensions L x W x H:** 9.29 x 2.99 x 2.99 inches
- **Material:** Zinc

## Images

![Fingerprint Door Lock，Smart Door Knob, Smart Biometric Door Lock Fingerprint Door knob with App Control Suitable for Bedroom,Utility Room,Apartments Offices,Hotels(Black) - Image 1](https://m.media-amazon.com/images/I/61RtVvUpcPL.jpg)
![Fingerprint Door Lock，Smart Door Knob, Smart Biometric Door Lock Fingerprint Door knob with App Control Suitable for Bedroom,Utility Room,Apartments Offices,Hotels(Black) - Image 2](https://m.media-amazon.com/images/I/71zZ5-tkxgL.jpg)
![Fingerprint Door Lock，Smart Door Knob, Smart Biometric Door Lock Fingerprint Door knob with App Control Suitable for Bedroom,Utility Room,Apartments Offices,Hotels(Black) - Image 3](https://m.media-amazon.com/images/I/711sXN-w-+L.jpg)
![Fingerprint Door Lock，Smart Door Knob, Smart Biometric Door Lock Fingerprint Door knob with App Control Suitable for Bedroom,Utility Room,Apartments Offices,Hotels(Black) - Image 4](https://m.media-amazon.com/images/I/71mvZGTOfmL.jpg)
![Fingerprint Door Lock，Smart Door Knob, Smart Biometric Door Lock Fingerprint Door knob with App Control Suitable for Bedroom,Utility Room,Apartments Offices,Hotels(Black) - Image 5](https://m.media-amazon.com/images/I/71YLStcRTFL.jpg)

## Available Options

This product comes in different **Number of Items** options.

## Questions & Answers

**Q: What are the fingerprint unlocking functions of this product?**
A: The unlocking function includes: fingerprint unlocking, passwordunlocking, key unlocking, and Bluetooth APP unlocking

**Q: What type of door is suitable for?**
A: Applicable for wooden or steel doors with a thickness of 35-55mm

**Q: Where does it apply?**
A: Suitable for residential regions , apartments , offices , office buildings ,etc

**Q: Can I charge it and use it?**
A: It cannot be used for charging all the time, and the socket is only used for emergency charging and opening the door when the battery is dead.

**Q: What warning will be issued when the battery voltage drops to low?**
A: The buzzer sounds once, and the reader flashes green and red; The mobile app will receive a notification message that the battery is low.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great Fingerprint Door Lock, Easy to Use and Install
*by T***N on August 4, 2025*

I’ve been using this fingerprint door lock for a while now, and overall I’m really satisfied with it. The setup through the app was straightforward, and installation was simple with clear instructions. Day-to-day use is smooth and convenient. Fingerprint recognition is fast and accurate most of the time.The only issue I’ve noticed is when my hands are slightly moist, like after getting out of the shower. In those cases, the fingerprint sensor doesn’t register my finger, so I have to use the app to unlock the door. Thankfully, the app works reliably and connects quickly, so it’s just a minor inconvenience.Overall, it’s a solid and user-friendly lock that adds both security and convenience to my home. I would definitely recommend it.

### ⭐⭐⭐⭐⭐ Works great 👍
*by E***R on September 14, 2025*

Loved it works perfect, looks great great value for the money very easy to set up just follow the instructions. Looks to be high quality.Highly recommend 👍

### ⭐⭐⭐⭐⭐ Easy to install and set up fingerprints
*by A***R on September 3, 2025*

Very easy to install and program on the app. I LOVE THIS DOOR NOB!!!! It's amazing and works very well, just make sure your finger is dry or it doesn't recognize your finger print.

## Frequently Bought Together

- HEI LIANG Smart Door Knob, Fingerprint Door Lock Smart Lock Biometric Door Lock Fingerprint Door knob with App Control Suitable for Bedroom,Cloakroom,Apartments Offices,Hotels(Black)
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**Shop now:** [https://www.desertcart.ro/products/547087252-fingerprint-door-lock-smart-door-knob-smart-biometric-door-lock](https://www.desertcart.ro/products/547087252-fingerprint-door-lock-smart-door-knob-smart-biometric-door-lock)

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-01-28*