June 13, 2008

What Are Motion Detectors ?

You have probably seen many different motion detectors. They are found in many places and are used for many different reasons. The exact definition of a motion detector is a device that contains a mechanism or sensor that measures motion.
It can be used in conjunction with a device to sound an alarm when triggered. When a motion detector is triggered by something passing in front of it, a light might turn on, or an alarm might sound. There are also types of motion sensors that are used to open doors and the like when individuals come close to them, and these use one radar type of sensors to activate the doors.
Now that you are familiar with motion detectors, let’s explore the different types that exist. There are actually several different types of detectors. The internet lists all different types of alarms, including infrared.
These identify heat producing objects. This particular kind would keep the light and alarm from turning on if an inanimate object flew by. If you are more interested in something for inside your home or office for security reasons, then the ceiling mount type is an option. These cordless radar motion detectors can cover […]

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June 11, 2008

Choosing to Get a Wireless Alarm System

One of the more advanced methods available to safeguard your home and family is through a wireless home alarm system. Easy to install, operate, and maintain, there are many advantages to having a wireless home alarm system. They are an excellent way to protect your home, and they do not require drilling, wiring, or changing your home0s structure.
The key feature of a wireless home alarm system is that cables or wires are not needed to connect all of the sensors, connectors, alarms, and the control panel. You will have peace of mind knowing that every room in your home is protected without worrying about running wires or drilling holes. Not having cables makes placement of the motion activated sensors a breeze. It also allows you to place sensors where they cannot be seen or place them in areas that are more obvious without having to look at unattractive wires. Your options for sensor and component placement are unrestricted with a wireless home alarm system and not confined to the corner of the ceiling and other areas easily accessible by wires.
Audio monitoring, video surveillance, or both are available with some newer alarm system models. You can put audio and video […]

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June 10, 2008

Stun Guns and Their Physiological Effects

Have ever watched the TV show Star Trek and heard of the Romulan disruptor stun weapon? Have you ever thought about what it disrupts? Does it disrupt all the molecules in the person on the receiving end of the ray gun? What about a real stun gun? What does a real stun gun disrupt?
In this article, I will attempt to explain to you what a stun gun does disrupt on the scientific level.
The basic premise of a stun gun is to disrupt the communication superhighway between the brain and the peripheral nerves.
In general, stun guns put out a high-voltage, low amperage charge. Simply put, the stun gun exhibits a lot of punches but lack of power behind those punches. It is kind of like a 3-year-old kid punching the heck out of his daddy’s face but does not have enough force behind those punches to put his father in the hospital.
Upon depressing the stun gun’s trigger, the electric charge passes into the perpetrator’s body. Because it is high voltage (lots of punches), the electric charge will pass through thick clothing, fat under the skin, and subcutaneous soft tissue, particularly muscle. However, the low amperage (lack of power) does not have […]

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