Master Lock 6400ENT

Bluetooth Outdoor Padlock

Reviews (1) | Customer Questions (3)


Bluetooth and keyless, check. The Master Lock 6400ENT Bluetooth 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!

SKU: 6400ENT
Your Current Selections:
  • Bluetooth enabled outdoor padlock – Extended 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 6400ENT Bluetooth 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

1 3/8 (34mm) (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

Share your thoughts!

5 out of 5 stars

1 review

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What others are saying

  1. Exactly what we needed

    Blake (verified owner)

    Used it to lock cage in our warehouse. The product was easy to set up and use. Will probably buy more.

    (0) (0)

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Customer Questions & Answers

  1. Q What is the IP rating on the lock? answer now
    Asked by kellie amundson on October 20, 2021 6:34 PM
    Answered by the admin

    The ProSeries locks were tested to an IP56 rating.

  2. Answered by the admin

    This padlock can store up to 6 permanent codes at a time. 

  3. Answered by the admin

    The temperature range for this model is -4° F to 152° F.

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