ADT Provo, Utah

Figuring Out Which Home Security System Works Best
Let’s say you have decided to install outdoor home security cameras. Any person would tell another that this is a very good choice to make, especially if the area they live in has seen its fair share of crime. But shouldn’t homeowners go a step further? By anticipating intrusions before it happens people can ensure the safety of their family and their valuables. What other things should people consider when purchasing a system like this? Objectives The objective of external detection systems is to scare away thieves before they break into a property, right? What about the areas surrounding your property? Shouldn’t outdoor home security cameras be placed in different areas of the property, like the porch, shed or barn, garage, etc.? To do this, there are several kinds of technologies to consider that protect outdoor areas adjacent to a property. With this multitude of possibilities, which one is best? Things to consider If a system has infrared sensors, be advised that they are not the most reliable in all cases. On the other hand, it is especially reliable in areas such as doorways and windows. Why? Sensors pick up on the slightest movement and when there is no one around, the slightest movement in these areas could be an intruder. However, in areas like gardens or parking garages, motion sensors will go off repeatedly. False alarms are plentiful in these areas because of animals, large insects, weather, and so on. That is why there is a plethora of different systems, all with their advantages and flaws, depending on what the homeowner wants (presence detection, movement, both) and technology that is to be used radar, (either uni- or bi-directional), infrared (passive or active), laser, fiber optics, and the like. Every situation is unique and requires the implementation of one or more specific systems: rural site, industrial site, subdivision, suburban, urban site, ground floor apartment/office, terrace/roof access, garden or field, etc. Considering not only the gardens but also terraces and roofs, can be a huge factor in deterring intruders. The different types of detectors A perimeter infrared detector is placed directly on the front of the house and, through a long, narrow beam (up to 25m), it will protect the entire front of the house from the façade and windows to the door. This is a system that is especially suitable when heavy vegetation is likely to disturb the sensor. Its use is ideal for straight paths. A motion detector can be fixed either on the front or side of any property. Here, the beam is wider and can protect larger areas. Enclosed detectors are hyper-reliable because its cables are inserted into a fence and can detect vibrations when something is climbing or cutting the fence. A buried detector is ultra-reliable, mainly due to its discretion. It applies typically with military and in prisons. However, some homeowners feel this is the best way to protect their homes. Laser detection is a recent application of high reliability, negating the risk of false alarm. It is mainly used in museums, banks, and the like. Important criteria It is essential to take into account certain aspects when buying an outdoor detection system. For instance, people should look at: Detection angleDetection rangeLaying height of the detection systemType of communication usedPower detectionReliability/Weatherproofing (cold, frost, snow, rain, wind) and other external disturbances (insects, dust, sunlight), and vandalismAdjustable sensitivityConnectivity to existing alarm system or video surveillanceAdaptability to the terrain 3 trends to follow Dual technology consists of narrow infrared technology with additional functions (microwave technology, for example) that are designed to streamline the information collected by the sensors. This results in a significant increase in the reliability of the installation.Optical mirrors should also be used. Concave mirrors are used in some detectors to focus the infrared energy properly. Their use allows an improvement in detection accuracy and generates a quasi-type insensitivity to light sources when combined with ad hoc filters.The anti-masking function is a feature that creates a perimeter around the infrared sensor that can determine if it has been altered (blocking the camera or spraying the lens, for example). Fire resistance This is the ability of an electrical circuit to continue functioning despite exposure to fire. This is the case of electric circuits tied into lighting and safety and emergency tools. They are perfect for detection, public address, signaling, smoke, unlocking doors, and in public, commercial, and industrial areas. The gas emission during a fire has many negative effects: Black and opaque smoke emitted by a fire tend to reduce visibility, disorienting occupants during evacuationToxic gases are sources of dizziness and shortness of breath, irritation, and asphyxiation of personsThese gaseous emissions also attack certain equipment and building structuresThey can also spread rapidly, which may cause new fires to start It is, therefore, essential to minimize the gases produced during a fire. The combustion of conventional network cables, insulated with polyethylene, PVC or polyurethane, contributes largely to this gas production. Basically, these materials are designed to withstand fire, but they eventually ignite, so they produce a lot of smoke, which is highly toxic. Given the toxicity of the gas emitted by the combustion of halogenated compounds, it seems logical to ban the use of this type of cable, including the wiring of an alarm system. Yet, in most cases, there is no law stating the installer has to use halogen-free cable during installation.