Master Lock 4401LHEC

Bluetooth Outdoor Padlock


No more lost keys or combinations. Remotely control, manage access and monitor usage for unlimited Bluetooth series padlocks with the powerful Master Lock Vault Enterprise smartphone app and site. This durable cut and saw resistant directional outdoor padlock is ideal for facilities looking to improve security and accountability with robust audit trail features.

In stock

Your Current Selections:
  • Bluetooth enabled outdoor padlock
  • Hardened boron alloy shackle for superior cut resistance
  • Works with both the Master Lock Vault Home App for personal use and Master Lock Vault Enterprise for business use
  • Use your smartphone to open and manage your lock
  • No keys to lose, no combinations to forget, no unauthorized key duplication
  • Backup access using directional 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 CR2450 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

  • Construction sites and equipment
  • Industrial, storefront and business gates
  • Tool chests and boxes
  • Utility meters, substations and cable boxes

Note: This model replaces the Master Lock 4401DLH and 4401LHENT padlocks

Master Locks’s durable cut and saw resistant 4400D Bluetooth padlocks just got an upgrade with the Master Lock Vault Enterprise system. Built with businesses and facilities 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 rekeying, replacing and duplicating keys.

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. Backup directional code keypad can be used if a user does not have access to a device with Enterprise software.

GoKeyless™ is a factory trained and authorized Master Lock® dealer. Sales, service, support, valid warranties. It's why thousands of clients around the world choose GoKeyless™ for their security and access control needs each year. The most advanced combination lock ever created. The Master Lock Model No. 4400D bluetooth padlock is a portable combination padlock with a smartphone controlled locking system. Everything else in your life is connected, its time to get serious about your security. The smartphone app offers speed, ease of use, & greater control with the ability to share access; with keyless convenience. The locking mechanism features anti-shim technology, offering maximum security. The 1 Year Limited Warranty provides peace of mind from a brand you can trust. The model 4400D is made for indoor lockers. The dimensions are a perfect fit for standard lockers at schools, gyms, and clubhouses. Also available is the model 4401DLH which is great for outdoor usage.

2 7/8 (H) x 2 7/32 (W) x 1 (D)

Shackle Dimensions

A: 11/32in (9mm) B: 2in (51mm) C: 15/16in (23mm)

Access Type

Combo, Smartphone/App

Code Capacity

Single backup directional combination, Unlimited with 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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