OVERVIEW
- Use your smartphone to open and manage your lock with the Master Lock® Vault System compatible with both Master Lock Vault Home and Master Lock Vault Enterprise
- The free Master Lock Vault Home iOS and Android apps are designed for personal use, supporting up to 10 locks, allowing you to monitor access history and includes a Locker Mode setting that allows for storage inside a locker
- The free Master Lock Vault Enterprise iOS and Android app and web interface are designed for business applications working with many locks and many users allowing you to easily monitor access with robust data and audit trails
- No keys to lose, no combinations to forget. No unauthorized key duplication.
- Share access with others - temporary or permanent
- Backup access using directional code on lock keypad
- Low battery notification & reminder on padlock and in app
- Comes with easy to replace CR2450 battery
- Battery jump allows for temporary access if battery dies while locked
Manufacturer Resources
Product Specs
- Category:
- Door Trim and Accessories
- Subcategory:
- Padlocks
- Series:
- 4400 Series
- Keyed:
- Yes
- Product Group:
- Other \/ Miscellaneous Hardware
- Product Subgroup:
- Padlocks
- Product Type:
- Padlocks
- Commercial/Residential:
- Residential
- Shackle Diameter:
- 9/32" (7mm)
- Shackle Width:
- 13/16" (21mm)
- Padlock Body Width:
- 1-29/32" (47mm)
Master Lock 4400D – Frequently Asked Questions
How fast can I get the Master Lock 4400D delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
Can I return the door closer if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Master Lock 4400D come with a warranty?
Absolutely. The Master Lock 4400D is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Master Lock 4400D?
You can call, text, or email our expert support team for fast answers. We’re here to help with
product
selection,
installation tips, and troubleshooting. Contact Us
Why buy the Master Lock 4400D from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.