A security assembly may have at least two components including a first component and a second component. The first and second components may be engageable together, and may have an engaged condition and a disengaged condition. The engaged condition may be characterized by the first and second components being abutted against each other, and the disengaged condition may be characterized by the first and second components being spaced from each other. The security assembly may be configured to utilize a physical manipulation aspect and a magnetic interaction aspect between the first and second components.

A access control system includes a catch configured to be affixed to an inner portion of an enclosure, a latch configured to engage the catch when the catch is attached to the enclosure and an access door of the enclosure is in a closed position. The access control system is configured to detect, using one or more sensors, when the latch is within a predetermined proximity of the catch, and responsive to detecting that the latch is not within the predetermined proximity of the catch, determine whether an authorized credential was received via a communication interface to open the latch, and when the authorized credential was received, register an authorized opening of the latch in a memory device, and when the authorized credential was not received, register an the unauthorized opening of the latch in the memory device and enter an alert state.

An alert system configured to monitor a status of one or more supplemental door locks comprises a switch assembly and an alarm. The switch assembly is configured to detect whether one supplemental door lock is unlocked or locked and includes a switch, an indicator, and a communication element. The switch is to be coupled to a locking component of the supplemental door lock. The switch is configured to sense a position of the locking component and generate an electronic signal or data. The indicator is configured to provide a first indication of a status of the supplemental door lock. The communication element is configured to receive the electronic signal or data from the switch and generate a wireless signal that corresponds to the electronic signal or data. The alarm is configured to generate an audible or visible alarm when the switch assembly detects that the supplemental door lock is locked.

A supplemental door lock comprises a door-mounted component and a floor-mounted component. The door-mounted component includes a door-mounted plate, a hinge plate, and a locking assembly. The door-mounted plate is configured to attach to a door. The hinge plate is mounted on the door-mounted plate and includes upper and lower bridges which form spaces between the plates. The lower bridge includes a groove. The locking assembly includes a hinge pin, a locking blade, and a locking post. The hinge pin is positioned in the spaces and may be rotated between unlocked and locked positions. The locking blade includes a tab attached to the hinge pin and positioned in the groove when the hinge pin is in the locked position. The locking post is attached to the locking blade. The floor-mounted component includes a plate to be mounted on the floor. The plate includes a slot which receives the locking post.

A breach tool for unlocking a supplemental door lock mounted on a lower edge of a first side of a door comprises a handle section, a first hinged section, and a second hinged section. The handle section includes a first panel and a second panel connected to the first panel. The first hinged section includes a first hinge that rotatably joins the first hinged section to the first panel of the handle section and a tab extending outward from the first hinged section at roughly a right angle. The tab is positioned opposite from the first hinge. The second hinged section includes a second hinge that rotatably joins the second hinged section to the first hinged section and an upturned edge positioned opposite the second hinge. The breach tool is configured to be pushed under the door to raise a locking feature to unlock the supplemental door lock.

An apparatus for detecting the position of window handles or door handles, the apparatus including a magnetic-field sensor and a microcontroller unit, the microcontroller unit being designed to read out data from the magnetic-field sensor, to record a magnetic fingerprint for at least one window-handle/door-handle position, and to detect the at least one window-handle/door-handle position by comparing data of the magnetic-field sensor with the recorded magnetic fingerprint. An operating method for such a window handle or door handle is also described.

A latch is configured to be affixed to an inner portion of a door to an enclosure and to engage a catch attached to an inner portion of the enclosure when the door is in a closed position/A housing is affixed to an outer portion of the door and includes a memory device and a latch controller configured to detect when the latch is no longer within a proximity of the catch. The controller is configured to electronically open the latch to open the access door. The housing also includes an emergency access portal aligned with and providing access through the access door by an instrument to at least the catch to engage the catch and release the access door. The latch controller detects that the latch is no longer within the predetermined proximity of the catch and registers the opening of the latch in the memory device.

An air purifier includes a body and a control module. The body is provided with a case, a case door arranged on the case and a door lock; the case is provided with at least one filter, at least one ultraviolet lamp and at least one controller capable of being operated; the door lock includes a magnetic reed switch and a lock matched with the magnetic reed switch; the lock is provided with a lock tongue and a magnet forming a magnetic attraction relationship with the magnetic reed switch; and the lock is provided with a first state, in which the magnet is released from the magnetic attraction relationship when the lock tongue is rotated to a specific angle, and a second state when the magnetic attraction relationship of the magnet is not destroyed.

A door security apparatus includes a door-locking member and a sensor assembly. The door-locking member removably engages a plate. The door-locking member is a barricade that restricts movement of a door from a closed position to an open position while the door-locking member is engaged with the plate The sensor assembly is configured to detect engagement between the door-locking member and the plate.

Locks, systems and methods of monitoring a lock, the lock having a hub with a slot rotatable by a handle to open and close a latchbolt. A locking member is moveable into and out of engagement with the hub slot to prevent and permit movement of the hub and latchbolt. A sensor on the lock, adjacent the hub and locking member, monitors a moving lock component. The sensor may sense the position of the locking member in or out of engagement with the hub slot. The sensor may be a reed switch actuated by a magnet on the moving lock component. The lock may further include a magnet mounted on the hub and the sensor may comprise a reed switch capable of being actuated by the magnet on the hub. The lock and system may include an external control unit having an alarm for controlling operation of the lock.