Alarm System
Every type of alarm system has one purpose- to protect. They are designed to protect homes, businesses, and even cars from possible burglary and other damages. While some systems are mandatory for all buildings, like fire alarms, most are optional. However, it is an extremely smart idea to purchase some sort of system in your home to protect your family. There are many different types of systems that are available on the market today and there are many companies that are dedicated to providing safety to your home or office. Most alarms can be classified in one of two categories; indoor or outdoor. Indoor alarms, being the most common, can be used to protect cars, homes and businesses. Outdoor alarms protect all of your outdoor property, from your driveway to your patio. Outdoor alarms are common for businesses like car dealerships who have most of their items outdoors.
There are six main types of indoor alarm systems that you can purchase for your home or office.
Passive infrared systems are the most common for households and small businesses because they are affordable and reliable. These kind of systems monitor the temperature of the locations they are set up in. When an unexpected heat change occurs, which could be caused by an object or a person, the alarm sounds. Ultrasonic systems use frequencies that transmit sound waves that cannot be heard by humans. When an object enters the room it will be detected by a break in the sound waves. This method is not used often because sudden shifts in wind or air pressure can set off the alarm. Microwave systems emit microwaves and can detect movement because the rays are reflected off objects. Usually these systems are paired with infrared systems so false alarms are not common. These are the most common systems used for larger businesses. A Photoelectric alarm system detects the presence of an object by transmitting visible infrared beams across an area. When the beams are blocked by an object an alarm will sound. However, if an intruder is aware of the placement of the beams they can be avoided. These are the types of alarms that are common in movies. Glass break systems are used for perimeter protection in homes and offices of any size. When glass breaks it generates a wide set of frequencies. This type of alarm is set off by the frequency made by broken class. However some perimeter protesters are set up to monitor the vibration of the glass. Smoke, heat and carbon monoxide systems are extremely common, and mandatory, in homes and offices. They are on 24 hours a day to detect the levels of heat and gasses in your home to ensure the safety of your family or employees.
Outdoor alarm systems are not as efficient as indoor systems because there are an array of things that can happen outdoors. Outdoor systems are hard to install and often times there need to be many throughout the property to ensure you are properly protected. Vibration systems are mounted on barriers like fences, gates or even trees and can detect movement of structures. When movement occurs the alarm will sound. The system can be set to different intensity levels so the wind or a small animal will not set off the alarm. Passive magnetic systems are buried in the ground and create an electromagnetic field with wires running the perimeter of your property. They can sense movement on the ground above them and sound an alarm when the movement is vast. An E-field alarm system can be installed on the perimeter of fences and walls or even poles. An array of indicators are used and they create an electromagnetic field between them. If the amplitude, and rate of the frequencies change for a set period of time the alarm will assume that there is an intrusive object in the area and an alarm will sound. Microwave alarm systems produce a magnetic beam using high frequency waves that pass from a transmitter to the receiver. If the beam is blocked then an alarm will sound. Other common outdoor systems include microphonic systems, taut wire fence systems, fire optic cable systems, and H-field systems. The last few systems are not commonly used, but they are available.