The Master Lock 4400D Bluetooth Smart Padlock Made for use in indoor conditions features a 47mm wide metal body. The 7mm diameter shackle offers 22mm vertical clearance and is made of boron alloy, offering maximum resistance to cutting and sawing. Great for preventing access to your locker, cabinets, doors - whatever you need. The smartphone/app interface offers speed, ease of use, and greater control with the ability to share access and monitor activity, with keyless convenience. The locking mechanism features anti-shim technology, offering maximum security.
Use your smartphone to open your lock with the free Master Lock Vault 'eLocks' app
Never worry about a forgotten combination
Share the access to the padlock: add or remove access to one or different users, schedule the access (day/time)
Monitor access history and receive tamper alerts
Backup access using directional code on lock keypad
Low battery notification and reminder on padlock and in app
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
Boron carbide shackle for better resistance to bolt cutter
Indoor padlock
Supplied with CR2450 battery
Operating Temperature -4° C to +65° C