Electrical Engineering

Door Entry Phones System

Door Entry Phones System provide a method of securing a premise and allows the occupants to manually control access to the building for visitors once their identity has been checked. An Door Entry Phones System offers either audio or audio and video, the advantage of video being the operator can visually confirm the identity of …

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CCTV camera lens types

The generation of a high quality image is decided by many factors including light source of the environment, lens, sensor, compression engine, etc. However, for camera itself, a lens is the most fundamental component thatfirstly decides if the output of the quality is good or not. In the security industry, because the use of camera …

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Wireless Door Locks

Manufactures of Wireless Door Locks produce a wide variety of locking solutions that cover all possible door construction materials and design In order for the locking mechanism to function, batteries are securely held in the lock and can offer a life of over 40,000 lock movements With these types of Wireless Door Locks systems. online …

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Heat Detector Spacing

Heat detector Spacing are tested and given as listed . For example. one detector might have a listed spacing of 30 ft. while another might have a listed spacing of 5o ft. On ceilings up to 10 ft high.the heat detectors can be installed using the listed spacing. That is. you can’t exceed the listed …

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overview of fire Alarm system

in this post we will discuss overview of fire Alarm system and its competent A building fire alarm system uses a combination of automatic and manual initiating devices designed to signal the need for the building occupants to evacuate or relocate in the event of a fire or other emergency, report the event to an …

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What is Fire?

to answer the question What is Fire we have to understand the following During the initial phase of a fire, radiant energy travels as light waves. This radiant energy can heat other objects that it reaches. Radiant energy fire detectors can be used to detect the radiation produced by fires. A plume of hot gases …

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NFPA 72 Code Scope and Purpose

NFPA 72 reflects the input of many industry stakeholders whose interest is in creating the highest standards possible to help ensure the proper functioning of fire alarm and signaling systems NFPA 72 covers the application. installation. location. Performance .inspection . testing. And maintenance of fire alarm systems. supervising station alarm systems. Public emergency alarm reporting …

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Access Control Biometrics

Access Control Biometrics readers are used in higher security areas where the cardholder’s own biometric information is also used to confirm they are allowed access through the door Access Control Biometrics readers are also widely used in time and attendance applications to confirm the correct member of staff is clocking in / out There are …

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Access Control Readers

The access control readers are used by a  cardholder to access an area through. usually a door, but can also be used to open barriers. turnstiles. elevators and sliding gates Readers, when used on a door. are mounted at a height of between 0.9 and 1 meters from the floor. This height is to comply …

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Access Control Credentials

A cardholder Access Control credentials are carried by the user and contains a unique code that is made up of the site code and card number To access a door or portal. the credential is placed near to the reader so it enters the field of the antenna and can pass its contained number back …

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