Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.