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Early models of key finder were sound-based, and listened for a clap or whistle (or a sequence of same), then beeped for the user to find them. Determining what was a clap or a whistle proved difficult, resulting in poor performance and false alarms. Because of this low quality and unreliability, these early key finders were soon discarded and ...
A Chubb detector lock is a lever tumbler lock with an integral security feature, a re-locking device, which frustrates unauthorised access attempts and indicates to the lock's owner that it has been interfered with. When someone tries to pick the lock or to open it using the wrong key, the lock is designed to jam in a locked state until ...
The Chubb Electronic Security subsidiaries produce smoke detectors, fire alarms, burglar alarms and glass break detectors. In 2010, the "Chubb Locks" brand licence expired, and Assa Abloy decided not to renew. The products are still sold, but rebranded as Yale and Union locks, other well known brands owned by Assa Abloy. [2]
A watchclock station with key hanging on a chain. A watchclock is a mechanical clock used by security guards as part of their guard tour patrol system which require regular patrols. The most commonly used form was the mechanical clock systems that required a key for manual punching of a number to a strip of paper inside with the time pre ...
Denial or monitoring of physical access to sensitive computers, e.g. by closed-circuit video surveillance and access control, is the most effective means of preventing hardware keylogger installation.
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The bitting code is used in conjunction with a key's Depth and Spacing Number to completely determine all relevant information regarding the key's geometry. [1] Each number in the bitting code corresponds to a cut on the key blade. For example, a bitting code of 11111 with Depth and Spacing Number 46 specifies a Kwikset key with five shallow cuts.
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