Security Systems

Wireless security cameras are closed-circuit television (CCTV) cameras that transmit a video and audio signal to a wireless receiver through a radio band. Many wireless security cameras require at least one cable or wire for power; "wireless" refers to the transmission of video/audio. However, some wireless security cameras are battery-powered, making the cameras truly wireless from top to bottom.Wireless cameras are proving very popular among modern security consumers due to their low installation costs (there is no need to run expensive video extension cables) and flexible mounting options; wireless cameras can be mounted/installed in locations previously unavailable to standard wired cameras,

for more

Public Addressing System (PA system) is an electronic sound amplification and distribution system with a microphone, amplifier and loudspeakers, used to allow a person to speak to a large public, for example for announcements of movements at large and noisy air and rail terminals or at a sports stadium or amplify other audio content, such as recorded music or the live sound of a band. The term is also used for systems which may additionally have a mixing console, and amplifiers and loudspeakers suitable for music as well as speech, used to reinforce a sound source, such as recorded music or a person giving a speech or distributing the sound throughout a venue, building or area.

for more

In the fields of physical security and information security, Access Control (AC) is the selective restriction of access to a place or other resource.[1] The act of accessing may mean consuming, entering, or using. Permission to access a resource is called authorization..

for more

A fire alarm system is number of devices working together to detect and warn people through visual and audio appliances when smoke, fire, carbon monoxide or other emergencies are present.

for more

Water leak detection system is used to detect water, chemical, oil and refrigerant gas leaks. The heart of the Water leak detection system is the water leak detector cable. The cable itself is the sensor. Every centimeter of rugged, fire rated cable is sensitive to water and when water comes into contact with the cable, even a few milliliters, the system is able to detect the leak AND report the location. The detection cable can be installed in any length from a few meters in a drip tray to hundreds of meters around the perimeter of an office area. Typical applications in office buildings include the monitoring of fan-coil units around the edge of the building office floors, detectors surrounding the central utility core on each floor of the building and dedicated monitoring of leaks in electrical switch gear rooms, server rooms, network communications, etc.

for more

An Aspirating Smoke Detector (ASD) is a system used in active fire protection, consisting of a central detection unit which draws air through a network of pipes to detect smoke.[1] The sampling chamber is based on a nephelometer that detects the presence of smoke particles suspended in air by detecting the light scattered by them in the chamber. ASDs can typically detect smoke before it is visible to the naked eye.

for more

Automatic Fire Suppression systems control and extinguish fires without human intervention. Examples of automatic systems include fire sprinkler system, gaseous fire suppression, and condensed aerosol fire suppression

for more

The most effective rodent repellent method is cleanliness. Most rodents are scavengers and will consume any food available to them. After locating a secure food source, rodents will nest within close proximity, and populations grow at rapid rates. It is important to store trash in tightly sealed containers and to dispose of garbage regularly. Coordinated effort with neighbors will help to further prevent rodent infestations.Repellents may also be used to deter rodent populations. Both natural and chemical-based repellents are commercially available and vary in effectiveness. The smells of some plants, such as eucalyptus, wormwood and mint, are unattractive to rodents. However, they usually are minimally effective in repelling rodents.

for more

Variable Air Volume (VAV) is a type of heating, ventilating, and/or air-conditioning (HVAC) system. Unlike constant air volume (CAV) systems, which supply a constant airflow at a variable temperature, VAV systems vary the airflow at a constant temperature. The advantages of VAV systems over constant-volume systems include more precise temperature control, reduced compressor wear, lower energy consumption by system fans, less fan noise, and additional passive dehumidification

for more

A Building Management System (BMS), otherwise known as a Building Automation System (BAS), is a computer-based control system installed in buildings that controls and monitors the building's mechanical and electrical equipment such as ventilation, lighting, power systems, fire systems, and security systems.

for more

A smaller building may have a single, computerized HVAC controller that operates the Direct Digital Control (DDC) system. However, a large building normally requires a more complex system of controllers, divided into separate sections called tiers. This is called the architecture of the system. .

for more