Bluetooth 1-29/32 in. Wide Zinc Indoor Personal Use Padlock

The Master Lock No. 4400D Bluetooth Smart Padlock features a 1-29/32 in. (47 mm) W metal body for durability. The 9/32 in. (7 mm) Dia shackle offers 7/8 in. (22 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
• 2-piece weather cover for maximum outdoor protection
• 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
• Locker mode setting allows for storage inside a locker
• Hardened boron alloy shackle for superior cut resistance