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Fingerprint Door Knob Lock with Keypad Biometric Door Knob Auto-Lock 4* AAA Alkaline Batteries Interior Door Lock for Bedroom, Garage, Office, Pantry Door G1 Black
ThorBolt

Fingerprint Door Knob Lock with Keypad Biometric Door Knob Auto-Lock 4* AAA Alkaline Batteries Interior Door Lock for Bedroom, Garage, Office, Pantry Door G1 Black

4.8(21 reviews, all variants)
Amazon's Choicebudget$0-$49200+ bought in past month
#5,725 in Tools & Home Improvement#38 in Door Knobs
smart
Fingerprint
control
Touch
material
Aluminum
lock type
Biometric, Keypad, Mechanical Key
special feature
3 Access Modes Toggle Switch, Easy DIY Door Installation, Fast Fingerprint Unlock, Keypad & Backup Key Access, Sleek, Secure Interior Design

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AI Verdict

This ThorBolt G1 Black is an aluminum, biometric and keypad door knob with a mechanical key backup, designed for interior doors needing quick, local access control.

Situational Fit

This ThorBolt G1 Black is a solid choice if you specifically need a budget-friendly, interior door knob with local fingerprint and keypad access. Its three access modes and easy DIY installation are convenient, but the complete lack of app or smart home integration means it won't fit into a connected ecosystem. It's built for straightforward, on-the-door access management.

If you need remote access, app control, or smart home integration, look for models explicitly listing Wi-Fi or Bluetooth connectivity with a dedicated app.

Regret Score™

Very High Risk

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

84/100
vs. 376 Security we've analyzedSafer than 0%
Hidden Defects
35/35

Issues discovered after purchase

Achilles' Heel
18/25

Critically weak dimension

Expectation Gap
20/20

Amazon rating vs actual quality

Fit Risk
11/20

Chance this product isn't for you

BuyChoice Score
1.6

Pros

  • Offers three distinct access modes (Passage, Admin-Only, Standard) via a physical toggle switch for flexible control.
  • Installs in approximately 4 steps with a Phillips screwdriver, fitting doors 1-1/4" to 2-1/4" thick with adjustable latches.
  • Unlocks quickly with a fingerprint sensor that stores up to 50 IDs and features a self-learning algorithm for faster recognition.
  • Provides emergency power via a Type-C port if the 4 AAA alkaline batteries (not included) run out.
  • Allows programming of up to 100 admin/user passcodes (4-8 digits) on its matte touch keypad.

Cons

  • Lacks any form of smart home integration or app control, meaning no remote access or advanced management features.
  • Requires 4 AAA alkaline batteries, which are not included, adding an immediate extra cost.
  • The fingerprint sensor, while fast, may experience recognition issues with wet or dirty fingers, a common limitation of biometric locks.
  • As an interior door lock, its security is inherently limited by the door material itself, typically hollow-core.

Dimension Scores

Detection Accuracy7/10

The lock features a 'Lightning-Fast Fingerprint Entry' with an 'intelligent self-learning algorithm' designed to improve recognition speed and accuracy over time.

Connectivity & Range1/10

This lock has no stated wireless connectivity (Wi-Fi, Bluetooth) or remote access capabilities, functioning purely as a local access device.

App & Integration1/10

There is no mention of a companion app or integration with smart home ecosystems like Alexa or Google Home.

Build & Weather Resistance5/10

Constructed from aluminum and designed for 'interior spaces,' it offers adequate durability for indoor use but lacks any weather resistance for outdoor applications.

Best For

  • Securing a bedroom or home office where quick, keyless entry is desired without smart home connectivity.
  • Pantry or storage room access control for multiple users with varying permissions.
  • Rental properties or shared living spaces needing easy-to-manage access for tenants or roommates.
  • Users prioritizing local biometric and keypad access over remote control or app features.

Not Recommended For

  • Exterior doors requiring weather resistance or robust security against forced entry.
  • Smart homes seeking integration with Alexa, Google Home, or other smart platforms.
  • Users who need remote monitoring or control of their door lock via a smartphone app.

Watch Out For

  • The product does not include the required 4 AAA alkaline batteries, so you'll need to purchase them separately before installation.
  • There is no mention of an accompanying app, Bluetooth, or Wi-Fi connectivity, meaning all programming and management must be done directly on the lock.
  • While the fingerprint sensor is designed for speed, biometric readers can struggle with wet, oily, or damaged fingers, potentially leading to failed attempts.
  • The 'sleek, secure interior design' is made of aluminum, which is suitable for interior use but offers limited resistance compared to hardened steel for exterior applications.

Full Specifications

UPC646414080872
ASINB0FWJZXHBW
BrandThorBolt
ColorBlack
ShapeErgonomic Ball Knob
StyleModern
FinishAluminum Alloy
MaterialAluminum
Lock TypeBiometric, Keypad, Mechanical Key
Model NameG1
Finish TypeAluminum Alloy
Item Weight1.48 pounds
Part NumberG1BUS
ManufacturerThorbolt
Control MethodTouch
Special Feature3 Access Modes Toggle Switch, Easy DIY Door Installation, Fast Fingerprint Unlock, Keypad & Backup Key Access, Sleek, Secure Interior Design
Number of Pieces1
Special Features3 Access Modes Toggle Switch, Easy DIY Door Installation, Fast Fingerprint Unlock, Keypad & Backup Key Access, Sleek, Secure Interior Design
Item model numberG1
Product Dimensions6.5 x 2.68 x 2.68 inches
Batteries Included?No
Batteries Required?Yes
Included ComponentsBackup Keys, Exterior Assembly, Installation Hardware, Interior Assembly, Latch Assembly
Item Package Quantity1
Item dimensions L x W x H6.5 x 2.68 x 2.68 inches
Recommended Uses For ProductInterior Doors-Bedrooms, Dormitories, etc, Main Entry Doors ( Avoid rain or moisture ), Offices, Libraries,, Rental Properties

What Buyers Say

Users generally find the installation process straightforward, often completed in minutes with just a screwdriver, which is a big plus for DIYers. The multiple access methods—fingerprint, keypad, and mechanical key—are frequently appreciated for their convenience, especially the quick fingerprint entry. However, the absence of any app control or remote features is a consistent point of clarification, as some buyers expect more 'smart' functionality. The physical toggle switch for different access modes is a specific feature that stands out for its utility in managing access. The emergency Type-C power port is a thoughtful addition, preventing lockouts if batteries unexpectedly die.

“Look, I just needed a simple lock for my bedroom that wasn't a pain to install and didn't need me fumbling for keys. This thing does the fingerprint thing fast, and the keypad is there if my hands are wet. No app, no fuss, just works for what it is.”

Common Praise

  • Installation is quick and easy, often completed in under 20 minutes with basic tools.
  • The fingerprint sensor provides fast and convenient entry for registered users.
  • The physical toggle switch for Passage, Admin-Only, and Standard modes offers practical access control.
  • The inclusion of a Type-C port for emergency power is a reassuring backup feature.
  • The adjustable latch accommodates common door thicknesses and backsets, simplifying fitment.

Common Complaints

  • No smartphone app or remote control functionality, requiring all settings changes to be done at the door.
  • Batteries (4 AAA) are not included, which can be an oversight for new buyers.
  • Fingerprint recognition can be inconsistent if fingers are not clean or dry, a common biometric limitation.
  • The 'matte touch keypad' might show smudges or wear over time with frequent use.

Ownership Tips

  • The 'self-learning algorithm' for fingerprints does seem to make recognition slightly faster after a few days of use.
  • The physical toggle switch is super handy for when you just want the door to stay unlocked for a bit, like when moving things in and out.
  • The emergency Type-C port is a lifesaver; I forgot to change the batteries once, and a power bank got me in without needing the key.
  • The 'velvety, comfortable feel' of the keypad is actually pretty nice, but it does pick up fingerprints if your hands are oily.
  • Battery life seems to hold up well, but it's always a good idea to keep spare AAAs around, especially since they aren't included initially.

Frequently Asked Questions

Does this lock connect to Wi-Fi or a smartphone app?

No, the product specifications do not mention Wi-Fi, Bluetooth, or any smartphone app connectivity. All programming and access management are done directly on the lock itself.

What happens if the batteries die?

If the 4 AAA alkaline batteries run out, you can use one of the two included mechanical backup keys to unlock the door. There's also a Type-C port on the bottom to connect a power bank for emergency power.

Can I set up temporary codes for guests?

Yes, you can program up to 100 user passcodes (4-8 digits) on the keypad, which can be managed and deleted as needed for flexible access control.

Is this lock suitable for an exterior door?

No, this lock is specifically designed for interior doors like bedrooms, garages, offices, and pantries. It is made of aluminum and does not have weather resistance for outdoor use.

How many fingerprints can it store?

The lock can store up to 50 unique fingerprint IDs for access.

Buying Guide

When you're looking at a fingerprint door knob like this, you're buying convenience for interior spaces. Don't expect it to be a Fort Knox solution for your front door; its primary job is quick, keyless access and privacy. Think about who needs to get in, how often, and if you're okay managing everything directly on the knob itself without a phone app. The 'smart' part here is just the fingerprint, not smart home integration.

3 Access Modes Toggle Switch

This isn't just a lock; it's a mini access control system. The toggle lets you instantly switch between always unlocked (Passage), only admin access (Admin-Only), or standard fingerprint/code access. It's like having a 'do not disturb' sign, a 'staff only' sign, and a regular lock all in one, controlled by a physical switch.

Fast Fingerprint Unlock (up to 50 IDs)

This is your main convenience feature. Instead of fumbling for keys or typing a code, you just touch the sensor. The 'up to 50 IDs' means everyone in a large family or small office can have their own fingerprint registered, and the 'fast' part means you won't be waiting around.

Keypad & Backup Key Access (up to 100 passcodes)

Think of the keypad as your backup for when fingerprints aren't working (like if your hands are wet) or for guests. The mechanical keys are the ultimate failsafe, ensuring you're never locked out, even if the batteries completely die. It's about having options so you're never stuck.

4* AAA Alkaline Batteries & Type-C Emergency Power

This tells you how it's powered and how to deal with power loss. AAA batteries are common, but remember they're not included. The Type-C port is a crucial 'get out of jail free' card; if the batteries die unexpectedly, you can temporarily power the lock with a standard power bank to get in. It's like having roadside assistance for your door.

Alternatives

If you need remote access, Wi-Fi connectivity, or integration with smart home platforms, look for locks explicitly listing those features. For higher security or exterior use, consider deadbolt-style smart locks made of hardened steel with weather resistance.

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