A system may include a lock assembly having secured and unsecured conditions and having an opening for receiving a lock actuating object. An access restriction element may be positionable with respect to the lock assembly to affect access to the opening of the lock assembly. The access restriction element may have at least two conditions, a blocking condition in which the access restriction element at least partially obstructs access to the opening of the lock assembly and an access condition in which the access restriction element is configured to permit access to the opening of the lock assembly. The system may also include an access detection assembly configured to detect attempted access to the opening of the lock assembly by sensing changing of the access restriction element from the blocking condition to the access condition.

A lock assembly for a door, the lock assembly including a first magnetic field sensor and a second magnetic field sensor. The first magnetic field sensor and the second magnetic field sensor are moveable with respect to the door to determine an open position of the door, a close position of the door, and a fault condition. In one embodiment, the first magnetic field sensor and the second magnetic field sensor move with respect to the door as the door moves from the open position and the close position. The first magnetic field sensor is spaced from the second magnetic field sensor such that each of the first and second magnetic field sensors detects a different value of magnetic field intensity. A controller determines a position of the door with respect to a door frame using signals provided by the first and second magnetic field sensors.

Provided is a refrigerator having only a second door opened/closed or having both of a first door and a second door opened/closed using one handing by allowing a latch device to fix the second door to the first door or release the second door from being fixed to the first door. The refrigerator includes a main body having a storage compartment, a first door that is rotatably disposed in front of the main body and has an opening formed therein, a second door that is rotatably disposed in front of the first door to open/close the opening, a handle coupled to a front side of the second door to open/close the first door and the second door, and a latch device allowing the second door to be fixed and released to/from the first door.