Master Lock 6400LJENT

Bluetooth Extended Shackle Outdoor Padlock

Reviews (1) | Customer Questions (8)


Bluetooth and keyless, check. The Master Lock 6400LJENT Bluetooth Extended Shackle Padlock provides remote control, management and monitoring for Master Lock Bluetooth series padlocks with the powerful Master Lock Vault Enterprise mobile app and website. This padlock is ideal for security gates, lockers and more!

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Please note due to the national supply shortage this item is experiencing extended lead times. You may purchase on back order. Orders will be shipped according to when they were placed. By ordering now you ensure your place in line. Lead times may be upwards of 6 months.

For more information or ordering assistance, please call our Cabinet Project Specialists at 877-439-5377 ext 9002

  • Bluetooth enabled extended shackle outdoor padlock – Standard and Shrouded Shackle models available
  • Hardened boron alloy shackle for superior cut resistance
  • Includes Master Lock Vault Enterprise iOS and Android app, and web interface, designed for business applications working with many locks and many users
  • Use your smartphone to open and manage your lock with the Master Lock Vault Enterprise app
  • No keys to lose, no combinations to forget, no unauthorized key duplication
  • Backup access using numeric code on lock keypad
  • Share access with others – temporary or permanent
  • Easily monitor access with robust data and audit trails
  • Low battery notification and reminder on padlock and in app
  • Comes with easy to replace CR123A battery
  • Battery jump allows for temporary access if battery dies while locked

Master Lock Vault Enterprise

  • Efficiently manage access to ensure the right users have the right access
  • Simplify security set-up with bulk user and lock uploads
  • Automatically map lock and lock box locations via smartphone
  • Easily monitor access with robust data and audit trails
  • Assured back-up entry method using manual, directional or numeric code
  • Leverage the security of 256-bit, military-grade encryption

Facilities Management

  • Secure areas, materials, equipment and lockers
  • Easily assign access to groups or individuals by time and date
  • Efficiently manage many locks and many users
  • Increase accountability with audit trail of who accessed devices and when

Best Used For

  • Security Gates and Fences
  • Self-Storage Units and Lockers

The Master Lock 6400LJENT Bluetooth Extended Shackle Padlock provides remote control, access management and usage monitoring for unlimited Bluetooth series padlocks with the powerful Master Lock Vault Enterprise smartphone app and website. Master Lock Vault Enterprise provides a flexible and user-friendly management system for Master Lock keyless locks and lock boxes. Built with businesses and facilities in mind, your smartphone becomes a smart key which eliminates the need for physical keys as well as the time and money spent rekeying, replacing and duplicating keys. This durable cut and saw resistant keypad padlock is ideal for security gates, fences, lockers and more looking to improve security and accountability with robust audit trail features. The weather cover provides enhanced resistance to perform in snow, rain and temperature extremes.

Administrators can create scheduled or permanent access for individuals and customizable groups. Always know where your locks are through automatic mapping and know when they’re being access through detailed audit trails. The numeric keypad can be used if a user does not have access to a device with Enterprise software.

Body Width

2 7/16 (62mm) in.

Shackle Dimensions

2 3/8 (60mm) (H) x 1 (23mm) (W) x 11/32 (9mm) (Diameter) in.

Access Type

Keypad – Digits, Smartphone/App



Smartphone Compatibility

Android 5.0 or later, iOS 10 or later

Wireless Protocol

Bluetooth BLE

Battery Type


Battery Life

2 Years

Battery Back-up





Master Lock


Master Lock




1 lbs


1 Year Manufacturer

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5 out of 5 stars

1 review

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What others are saying

  1. V.P. Mfy

    Larry Buice (verified owner)

    Work Great -Able to look at log -open and closed-time report -Who open-closed

    (0) (0)

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Customer Questions & Answers

  1. A

    You are not able to have real-time notifications as the lock does not have any active wireless communication unless you are within Bluetooth range of the unit. 

  2. Q Does it have a battery that dies? Will that cripple access? answer now
    Asked by Claudine on March 7, 2022 9:27 PM

    This unit uses a CR123A for power and does offer a low battery indicator. If the battery dies, there is a temporary battery jump that can be used to power the device for access and replace the battery. 

  3. Q Can you limit someone's access by time and date and they use a code? answer now
    Asked by joseph famularo on March 7, 2022 6:30 PM

    You can set users to only have access to the unit at specific times and the user can be set to be disabled after a certain date. 

  4. Q How many people can use the code? answer now
    Asked by kathy on March 5, 2022 3:03 PM

    This model can hold up to 6 permanent codes at a time. The codes can be given to as many users as you wish for access. 

  5. A
    The MasterLock ProSeries locks were tested to an IP56 rating. This model was designed for indoor/outdoor use but does not currently have an IP rating. 
  6. A

    This lock is specifically designed for outdoor use and is weatherproof. 

  7. A

    Bluetooth credentials can be managed remotely without going to the device. There are no additional costs for this service. 

  8. A

    This model can hold up to 6 permanent codes at a time. 

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