The Master Lock No. 4401DLH Bluetooth Smart Padlock features a 2-7/32 in. (56 mm) wide metal body for durability. The 11/32 in. (9 mm) dia. shackle offers 2 in. (51 mm) vertical clearance and is made of boron alloy, offering maximum resistance to cutting and sawing. The smartphone/app interface offers speed, ease of use and 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.
Use your smartphone to open your lock with the free Master Lock vault elocks app for Android and iOS. Designed for personal use, supporting up to 10 locks
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 and receive tamper alerts
Backup access using directional code on lock keypad
Locker mode setting allows for storage inside a locker
Low battery notification and reminder on padlock and in app
Comes with easy to replace CR2 battery
Battery jump allows for temporary access if battery dies while locked
Compact footprint fits most lockers
Hardened boron alloy shackle for superior cut resistance