Security systems from Access Technologies, including fire alarm security systems, burglar alarms, wireless security systems and HID security systems. Access Technologies was founded to fill the market need for electronic security systems in Southindia, and is emphasizing service and support to differentiate itself from more price oriented chains allover in India to create a service-base company whose goal is to exceed customer's expectations.Differentiate from box-pushing, price-oriented businesses by offering and delivering best service and support -- and charging for it.
Fire Alarm Security systems
An automatic fire alarm system is an active fire protection system designed to detect the unwanted presence of fire by monitoring environmental changes associated with combustion. In general, a fire alarm system is either classified as automatic, manually activated, or both. The basic modern system consists of a dependable primary power supply, a secondary or backup power supply, any number of "initiating devices" and "notification appliances." Automatic fire alarm systems can be used to notify people of the need to evacuate in the event of a fire or other emergency, to summon emergency forces aid, and to prepare the structure and associated systems to control the spread of fire and smoke.
Intruder Alarm
Burglar (or intrusion), fire and safety alarms are all electronic today. Sensors are connected to a control unit via a low-voltage hardwire or narrowband RF signal which is used to interact with a response device. The most common security sensors indicate the opening of a door window or detect motion via passive infrared (PIR). New construction systems are predominately hardwired for economy. Retrofit installations often use wireless systems for a more economical and quicker install. Some systems serve a single purpose of burglary or fire protection. Combination systems provide both fire and intrusion protection. Sophistication ranges from small, self-contained noisemakers, to complicated, multi-zoned systems with color-coded computer monitor outputs. Many of these concepts also apply to portable alarms for protecting cars, trucks or other vehicles and their contents (i.e., "car alarms"). See also fire alarm control panel for specific fire system issues. Burglar alarms are sometimes referred to as alarm systems, see burglar alarm control panel for a discussion of hard-wired burglar alarm system design.
Sensors
Sensors are used in everyday objects such as touch-sensitive elevator buttons and lamps which dim or brighten by touching the base. There are also innumerable applications for sensors of which most people are never aware. Applications include cars, machines, aerospace, medicine, manufacturing and robotics.A sensor's sensitivity indicates how much the sensor's output changes when the measured quantity changes. For instance, if the mercury in a thermometer moves 1 cm when the temperature changes by 1 °C, the sensitivity is 1 cm/°C. Sensors that measure very small changes must have very high sensitivities.
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