Master Lock Bluetooth Indoor Padlock Model No. 4400D

Master Lock Bluetooth Indoor Padlock Model No. 4400D and Sentry Safe Digital Safe3

Master Lock Model No. 4400D 1-29/32in (47mm) Wide Bluetooth indoor Padlock.
Price: This padlock retails for $71.54.  The color of the padlock is Silver and Black.
To use the padlock you have to download the Master Lock app and set up the account once the account is the setup you can start using the padlock.

Master Lock Bluetooth Smart Padlocks transform your smart device into a key. With a progressed, simple to-utilize application, you don’t need to stress over losing keys, overlooking mixes, or unapproved key duplication. Genuine keyless comfort gives more prominent control and adaptability as you share access with companions, family, partners, and representatives. Appreciate genuine feelings of serenity as you screen the bolt’s action and get alter cautions and low battery notices. With hostile to shim innovation offering most extreme security, these locks join ergonomic highlights with quality, sturdiness, and dependability, settling on them the ideal decision for use at home, office, worksite or school.

Padlock application: for indoor utilize; compact design is best utilized for school, worker, athletic, and indoor capacity lockers.

Convenience: utilize your cell phone to open Bluetooth latch, or enter a directional code on lock keypad for simple reinforcement section when your cell phone is absent; Locker mode setting takes into account cell phone stockpiling inside a Locker.

Shared access: share transitory or lasting access by means of Bluetooth or keypad code with welcomed visitors or collaborators, screen action, and get alter and low-battery alarms all from your free Master Lock vault elocks application for Android and iOS.

Durable Design: latch incorporates metal body development, Boron Carbide shackle, and hostile to shim locking component for enhanced quality and security; Plus military-review Bluetooth verification and encryption.

Measurements: 1-29/32 in. Wide bolt body; 9/32 in. The distance across shackle with 7/8 in. Length, 13/16 in. Width 

I use this padlock on my husband’s toolbox he likes how he doesn’t have to worry about someone taking his tools. It’s easier to open the padlock with just the app from your phone. Having this padlock makes things so much easier without having to worry about finding the keys to a padlock. I have to say this is something worth investing in if you are like my husband and misplace keys this padlock is a lifesaver in our household. Click HERE to go and purchase your own Master Lock Bluetooth Padlock.

Also, make sure to visit Master Locks social media below.


I received the items in this post as complementary to share my honest and unbiased opinion of products (unless otherwise stated). All opinions expressed on this page are those solely of Laurali’s Blog & Reviews. Thank you for your interest!



  1. Interesting security device

  2. Ellie Wright says:

    My husband would use this on his tool bow also.

  3. Tammy Young says:

    love this security lock

  4. Jennylyn Gross says:

    wow this is different

  5. Laurie Nykaza says:

    Sounds great to use my kids would like this one

  6. Breanna Pollard says:


  7. Padlocks are always useful. This one seems extra safe and extra useful. We need these more and more!

Leave a Comment


This site uses Akismet to reduce spam. Learn how your comment data is processed.


Get the latest posts delivered to your mailbox: