Master Lock 5441EC

Bluetooth Wall-Mount Lock Box


Turn smartphones into smart keys! Remotely control, manage access, and monitor usage for unlimited Bluetooth series lock boxes with the powerful Master Lock Vault Enterprise smartphone app and site. Install this weather-resistant keyless wall-mount lock box anywhere you need key and keycard storage. Integrates with ShowingTime® property showing management tool for realtors, agents and brokers.

In stock

SKU: 5441EC
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Need assistance or have questions? Call our Commercial Product Specialists at 877-439-5377 for more information and ordering assistance. We’re here to help!

  • Large storage capacity wall-mount lock box for keys and access cards (portable shackle model also available)
  • Open and manage with your smartphone
  • Works with both the Master Lock® Vault Home App for personal use and Master Lock Vault Enterprise for business use
  • Can also be accessed by entering a traditional code on the keypad
  • Schedule access now or in the future
  • Provide permanent or temporary access
  • Includes mounting hardware for easy installation
  • Use the App or web to track usage
  • Low battery warnings
  • Large storage capacity for keys and access cards
  • Easy to replace battery (CR123A preinstalled)

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

Real Estate

  • No long-term contracts, monthly or shared access fees
  • Share access quickly and easily with showing agents, contractors, inspectors or even homeowners
  • Conveniently schedule temporary, permanent or future access
  • Monitor activity by device and user
  • Integrated with ShowingTime®, the leading real estate showing and scheduling management provider

Facilities Management

  • Secure areas, materials, equipment, keys or keycards
  • 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

Note: This model replaces the Master Lock 5441D and 5441ENT lockboxes

Master Lock’s sturdy weather-resistant Bluetooth lock boxes upgraded with the Master Lock Vault Enterprise system. Built with realtors in mind, Master Lock Vault Enterprise provides a flexible and user-friendly system for keyless lock and lock box management through it’s web interface and smartphone app. Your smartphone becomes a smart key, eliminating the need for physical keys as well as the time and money spent re-keying, replacing and duplicating keys.

Administrators can create scheduled or permanent access for individuals and customize groups. Always know where your locks are through automatic mapping and know when they’re being access through detailed audit trails. Enterprise enabled locks and lock boxes also integrate with ShowingTime® showing management tool, providing realtors, agents and brokers with a one-stop app for lock scheduling and access.

Exterior Dimensions

5 (H) x 3-1/4 (W) x 2-5/16 (D) in.

Inside Dimensions

3-39/64 (H) x 2-1/2 (W) x 1-7/64 (D) 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



Weather Resistant


Master Lock


Master Lock


Black, Silver


3 lbs


1 Year Manufacturer

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Customer Questions & Answers

  1. Q Can I create codes for this wirelessly? answer now
    Asked by Juan on January 6, 2023 10:42 PM

    Yes, there is a web portal as well as a smartphone app to manage this lock. However it is updated via Bluetooth, so any changes made need to be updated on the lock using the mobile app while in Bluetooth range of the lock.

  2. Q How many temporary codes can this unit store? answer now
    Asked by Mike on November 9, 2022 11:50 PM

    This unit can store a single temporary code at once.

  3. A

    Yes! You can install this weather-resistant product on a door to hold materials or items if you desire.

  4. Q Does the lock box need internet access? answer now
    Asked by Justin Palm on June 21, 2022 1:38 PM

    The lockbox only requires a Bluetooth connection to your smartphone/tablet to make programming changes.

  5. Q How many individual user codes can be programed? answer now
    Asked by Cliff on April 15, 2022 9:56 AM

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

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