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Master Lock

Bluetooth Smart Key Safes

The Master Lock No. 5440ENT & 5441ENT Bluetooth® Portable Lock Box features a 3-1/4" (83mm) wide metal body for durability and a fully removable shackle for convenience.

The Master Lock Vault Enterprise system is designed to support Many Locks and Many Users with unmatched security, simplicity and accountability.

Administrators control individual or system-wide lock access with our convenient web interface, while users enjoy simple, secure access to assigned locks or lock boxes.

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Master Lock Model No. 5440ENT
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Product Features:

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 & reminder on device and in app

Large storage capacity for keys and access cards.

Product Specifications:


Removable shackle for easy portability and installation.

Comes with easy to replace CR123A battery


Comes with easy to replace CR123A battery

Available Products:

5440ENT - Bluetooth® Smart Portable Key Safe

5441ENT - Bluetooth® Smart Wall Mount Key Safe