Master Lock 4400D Bluetooth Smart Padlock, 2

Highlights:

• Body Width: 2
• Color: Black
• Shackle Clearance: 7/8
• Shackle Diameter: 9/32
• Lock Material: Boron Alloy
• Locking Mechanism: Ball Bearing Locking
• Use your smartphone to open your lock with the free Master Lock Vault eLocks app
• Your smartphone is the key. no keys to lose. nor combinations to forget
• Share access with others. temporary or permanent
• Monitor access history. and receive tamper alerts and low battery notifications
• Backup access using directional code on lock keypad. when Bluetooth is unavailable