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Backcheck: the resistance provided by a door closer as a door is opened.
Backplate: The plate located on the inside of a door, allowing the cylinder connecting screws and tailpiece to pass through.
Backset: The distance from the edge of the door to the centre line of the keyhole, or the central axis of the doorknob or handle.
Bandwidth: The maximum data transfer rate of an internet connection or network.
Barrel: A portion of the cylinder that rotates when the key is inserted and turned.
Bluetooth: Is a short-range wireless technology standard. It's used for exchanging data between fixed and mobile devices over short distances using UHF radio waves in the ISM bands, from 2.402 GHz to 2.48 GHz,
Bolt: The part of the lock or latch which provides the fastening by extending out from its case to engage in the staple/striking plate, link or other members.
Biometrics: A reader or scanning device used to identify distinct human characteristics for authentication.
Blank key: a plain key before any cuts are made.
CCTV: Short for Closed-Circuit Television, where cameras are used to send signals to a specific set of monitors.
Coupler: A device that is used in conjunction with a trailer ball, allowing your vehicle and trailer to turn corners without disconnecting.
Cylinder: a unit housing disk tumblers, springs, and other necessary parts.
Cylinder rose: Also known as a cylinder ring. This is a metal disc which surrounds the outer face of the cylinder.
Deadbolt: A bolt engaged by turning a knob or key, rather than by a spring.
Deadlatch: Is a spring-bolt latch where the bolt will self deadlock. It can be retracted by turning either the doorknob or key.
Deadlock: A lock having only a square-ended deadbolt. Can be operated from one or both sides by key or outside by only key and inside by snib.
Dip switch: A type of garage door remote that is identifiable by a bank of 8,10 or 12 small switches in the remote, matching to the garage door receiver.
Door closer: A device that automatically closes a door or gate in a controlled manner. Therefore preventing the door from being slammed.
Electric strike: Usually used in commercial & industrial settings. It is an electromechanical door locking device, that works in conjunction with cylindrical locksets, mortise locks, or rim exit devices.
Escutcheon: The cover for the key hole in a mortice lock.
Fixed code: A type of garage door remote that transmits one fixed code to its matching garage door receiver.
Floodlight: Can have a beam width of up to 120 degrees and as such, are used to illuminate a broader area.
Hasp: A hinged metal plate that is fitted a loop. They are used in conjunction with a padlock to fasten doors.
Hopper window: See Awning.
Hopping code: See Rolling Code.
Hub: A central control panel where users can manage an entire system, such as lights, locks, alarms etc.
IP Rating: Short for Ingress Protection, consists of two digits. The first digit is for solids protection and the second digit is for liquids protection. With 0 being not protected to 8 offering high or complete protection.
Keyed Alike: The same key can operate a set of locks within the system.
Keyed to Differ: Each key can only operate a single lock in the system.
Latch: Is a single bolt to latch or fasten the door. It is not capable of being locked.
Lockset: Is a complete lock system, that includes knobs/lever, plates and other accessories
Master Keyed: The key can operate on all the keys in the system.
Mortice (Mortise) lock: Is a type of lock that is fitted into the door, rather than being attached to one side of the door. This requires a hole to be cut into the edge of the door.
Passage set: a latch set with handles on both sides and no locking mechanism.
POE: Short for Power over Ethernet. It is a technology that lets network cables carry electrical power as well as network data.
Rekeying: Rekeying a lock is replacing the old lock pins inside the lock with new lock pins to work so it will work with a new key.
Rolling code: A type of garage door remote. Also known as a Hopping code. The remote will choose a new code every time a button is pushed to either open or close a garage door.
Sash/Double hung window: Features two window panes, one is fixed and other can be shifted vertically within the frame.
Shackle: The hinged, sliding or swivelling loop of a padlock, normally in a 'u' shape.
Sliding window: Features two window panes, one is fixed and the other can be shifted horizontally within the frame.
Snib: A manually operated catch. Using this mechanism prevents key holders from using the lock, or allows the door to be closed without the lock engaging.
Spotlight: Usually casts a narrow beam of light, with a width of no more than 45 degrees. Used to illuminate a specific spot.
Strike Plate: Is a metal plate that is attached to a doorjamb. It has a hole or holes to allow the bolt of the door lock through., adding further strength to the door lock.
TSA Approved: Allows Transport Security Administration to safely open/close the lock where required, through the use of a master key. This type of lock is mandatory for travel within, to and from the USA.
U-Lock: Also known as a D-Lock. A rigid shackle to secure items such as bicycles.
Z-Wave: A wireless network designed by Zensys Inc. to provide a streamlined communication between devices in a home control network.
Zigbee: An open global standard for wireless technology operating on the IEEE 802.15.4 specification. It is designed to use low-power digital radio signals for personal area networks, such as home automation.