- Use your smartphone to open your lock with the free Master Lock® Vault Home app
- Never worry about a forgotten combination!
- Share access with others - temporary or permanent
- Share 24/7 access or limit to days or nights
- Monitor access history
- 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
The Master Lock No. 4400EURD Smart Padlock features a 47mm wide metal body for durability. The 7mm diameter shackle offers 22mm vertical clearance and is made of boron alloy, offering maximum resistance to cutting and sawing. The Smartphone/app interface 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 Limited 2 Year Warranty provides peace of mind from a brand you can trust.