Master Lock® 4401DLH Bluetooth Padlock, Outdoor, Black/Silver, 2 7/32" Width

Features a 2 7/32 inch (56mm) wide metal body for durability. The 11/32 inch (9mm) diameter shackle offers 2 inch (51mm) vertical clearance and is made of boron alloy, offering maximum resistance to cutting and sawing. The smartphone/app interface offers speed, ease of use, keyless convenience and greater control with the ability to share access. The locking mechanism features anti-shim technology, offering maximum security. A two-piece weather cover offers maximum outdoor protection.