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Fingerprint door knob, smart door knob, intelligent biometric fingerprint door lock, keyless entry, controllable via app, suitable for bedrooms, storage rooms, apartments, offices, hotels (silver)
HEI LIANG

Fingerprint door knob, smart door knob, intelligent biometric fingerprint door lock, keyless entry, controllable via app, suitable for bedrooms, storage rooms, apartments, offices, hotels (silver)

3.5(9 reviews, all variants)
budget$0-$49100+ bought in past month
#11,159 in Tools & Home Improvement#78 in Door Knobs
wifi
WiFi
smart
Fingerprint
material
Aluminum
lock type
Biometric
special feature
Fingerprint, App Control, Auto-Lock, Real-Time Access Logs

Want the best price and purchase timing?

Our AI advisor analyzes real-time pricing across all channels to find you the best deal.

AI Verdict

This is a budget biometric door knob with app control and a mechanical key, designed for interior doors needing basic access management.

Situational Fit

This lock is a situational fit for interior doors where fingerprint and app-based access are priorities, especially for managing multiple users or temporary access. The requirement for a separate Wi-Fi gateway for full remote functionality means it's not a complete out-of-the-box smart home solution.

If full remote Wi-Fi control is essential without extra purchases, look for models with built-in Wi-Fi.

Regret Score™

Medium Risk

Lower is better — measures purchase-regret risk from real buyer complaints, review credibility, and product maturity

33/100
vs. 376 Security we've analyzedSafer than 57%
Hidden Defects
10/35

Issues discovered after purchase

Achilles' Heel
3/25

Critically weak dimension

Expectation Gap
7/20

Amazon rating vs actual quality

Fit Risk
13/20

Chance this product isn't for you

BuyChoice Score
2.5

Pros

  • Unlocks in 0.5 seconds using fingerprint recognition.
  • Offers three access methods: fingerprint, app control, and a concealed mechanical keyhole.
  • Stores up to 100 fingerprints for multiple users.
  • Features 5-second automatic locking and real-time access log synchronization with a smartphone.
  • Includes a 400mAh rechargeable battery with a low battery warning below 15% and a visual indicator.
  • Constructed with a 500-pound impact-resistant aluminum alloy frame.

Cons

  • Requires a separately purchased gateway for Wi-Fi setup and remote unlocking/temporary code generation.
  • The app control relies on Wi-Fi/Bluetooth, which means remote features are limited without the gateway.
  • No specific user feedback on battery longevity, only that it's rechargeable.
  • No keypad entry option, relying solely on fingerprint, app, or physical key.
  • Limited to door thicknesses between 1.18 inches and 2.17 inches.

Dimension Scores

Detection Accuracy7/10

The lock features 0.5-second fast fingerprint unlocking, indicating quick recognition, though real-world accuracy can vary.

Connectivity & Range4/10

While it has app control via WiFi/Bluetooth, full remote Wi-Fi functionality requires a separately purchased gateway, limiting out-of-the-box range and connectivity.

App & Integration5/10

The app allows for fingerprint management, unlock records, automatic locking, access modes, and security settings, but lacks explicit integration with broader smart home ecosystems like Alexa or Google Assistant.

Build & Weather Resistance6/10

Constructed with a 500-pound impact-resistant aluminum alloy frame, it offers physical durability, but no weather resistance specifications are provided for outdoor use.

Best For

  • Bedrooms or storage rooms where quick, keyless entry is desired.
  • Apartments or offices needing basic access control for multiple users.
  • Landlords or property managers who need to set time-limited access codes (12-hour/3-day/1-week options) and monitor entry logs.
  • Interior doors where a 500-pound impact-resistant aluminum alloy frame provides sufficient security.

Not Recommended For

  • Exterior doors requiring robust, weather-resistant security features.
  • Users who need integrated Wi-Fi functionality without purchasing an additional gateway.
  • Anyone needing a keypad for code-based entry without a smartphone.
  • Doors outside the 1.18 to 2.17-inch thickness range.

Watch Out For

  • No specific user complaints for this ASIN (B0FQNZXHPZ) were found in the search results.

Full Specifications

UPC763367307129
ASINB0FQNZXHPZ
BrandHEI LIANG
ColorSilver
ShapeRound
StyleClassic
MaterialAluminum
Lock TypeBiometric
Item Depth3 inches
Unit Count1.0 Count
Item Weight1.52 pounds
Part NumberHL-2
ManufacturerHEI LIANG
Exterior FinishSilver
Special FeatureFingerprint, App Control, Auto-Lock, Real-Time Access Logs
Special FeaturesFingerprint, App Control, Auto-Lock, Real-Time Access Logs
Item model numberHL-2
Product Dimensions9"L x 3"W
Batteries Included?No
Batteries Required?Yes
Included ComponentsLock And Key
Smart Home CompatibilitySmart Home Compatible

What Buyers Say

Specific user reviews for ASIN B0FQNZXHPZ were not found in the search results, so a summary of user experiences cannot be provided. General observations from similar budget smart locks often highlight ease of installation and convenience of fingerprint access, but can also point to inconsistent app performance or battery life issues.

“No specific user reviews found for this ASIN.”

Frequently Asked Questions

Does this lock work with Alexa or Google Assistant?

The product specifications do not mention compatibility with Alexa or Google Assistant. It offers app control via WiFi/Bluetooth, but integration with voice assistants is not listed.

Can I unlock the door remotely when I'm not home?

Yes, you can remotely unlock the door through the accompanying app. However, Wi-Fi setup for network access requires a separately purchased gateway.

How many fingerprints can this lock store?

The lock can store up to 100 unique fingerprints for access.

What happens if the battery dies?

The lock has a concealed mechanical keyhole, allowing you to use a physical key for entry if the battery is depleted. It also issues a low battery warning when below 15%.

Is this lock suitable for outdoor use?

The product is described as suitable for bedrooms, storage rooms, apartments, offices, and hotels, implying indoor use. There are no specifications for weather resistance for exterior applications.

Buying Guide

When you're looking at smart door knobs, think about where it's going first. Is it for an interior door like a bedroom, or an exterior door that needs to stand up to rain and sun? Also, consider how you actually want to unlock it – just your finger, an app, or maybe a code for guests. Don't forget about how it charges and how long that charge lasts, because nobody wants to be locked out with a dead battery.

Lock Type: Biometric (Fingerprint)

This means you unlock the door with your unique fingerprint, like unlocking your phone. It's super fast and convenient, so you don't need to fumble for keys or remember codes. Think of it as your personal key that's always with you.

App Control (via WiFi/Bluetooth)

This lets you manage the lock from your phone. You can add or remove fingerprints, check who's entered, and even unlock the door remotely if you have the Wi-Fi gateway. It's like having a remote control for your door, giving you more control and monitoring capabilities.

Material: Aluminum

The material tells you how tough the lock is. Aluminum is lightweight but still offers a good level of durability and impact resistance, which is important for security. It's not as heavy-duty as some steel options, but it's a step up from basic plastic.

Alternatives

If you need built-in Wi-Fi for remote access without an extra gateway, or a keypad for code entry, search for smart locks explicitly listing those features.

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