Master Lock 4400D 2" (51mm) Wide Indoor Bluetooth Smart Padlock

FEATURES: • Use your smartphone to open your lock with the free Master Lock Vault eLocks 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 & receive tamper alerts • 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 • Locker Mode setting allows for storage inside a locker • Compact footprint fits most lockers • Hardened boron alloy shackle for superior cut resistance SPECIFICATIONS: • Body Width: 2" • Lock Depth: 1.1" • Lock Height (Including Shackle): 3.06" • Verticle Shackle Clearance: .875" • Horizontal Shackle Clearance: .875" • Shackle Diameter: .281" • Battery (replaceable): CR2450 • Jump Battery: CR2450 • Weather Resistant: No • Color: Silver and Black The Master Lock No. 4400D Bluetooth Smart® Padlock features a 2in (51mm) wide metal body for durability. The 9/32in (7mm) diameter shackle offers 7/8in (22mm) vertical clearance and is made of boron carbide, 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 1 Year Limited Warranty provides peace of mind from a brand you can trust.