Infrared Motion
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 Auto Door Sensor InfraredIR Diffuse Reflective 24 240VAC VDC motion sensing $54.00 Time Remaining: 17d 22h 43m Buy It Now for only: $54.00 Buy It Now | Add to watch list |
 Hubbell H Moss Ceiling Motion Sensor ATD 2000 C $9.95 Time Remaining: 1d 15h 44m Buy It Now for only: $14.95 Buy It Now | Bid now | Add to watch list |
 BEA WIZARD NEW IN BOX PRESENCE AND MOTION SENSOR FOR SLIDING DOOR $100.00 Time Remaining: 14d 18h 29m Buy It Now for only: $100.00 Buy It Now | Add to watch list |
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 500W Vacancy Sensor Switch $19.44 Time Remaining: 23d 19m Buy It Now for only: $19.44 Buy It Now | Add to watch list |
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 Hubbell H Moss Ceiling Motion Sensor ATD 1000 C $9.95 Time Remaining: 2d 7h 53m Buy It Now for only: $14.95 Buy It Now | Bid now | Add to watch list |
 SECURITRON Exit Motion Sensor 12 or 24 VDC $204.78 Time Remaining: 22d 15h 21m Buy It Now for only: $204.78 Buy It Now | Add to watch list |
 BEA WIZARD TESTED GUARANTEED PRESENCE AND MOTION SENSOR FOR SLIDING DOOR $300.00 Time Remaining: 3d 8h 37m Buy It Now for only: $300.00 Buy It Now | Add to watch list |
 Heath Zenith HD 9260 WH C 270 Degree Journeyman Motion $78.74 Time Remaining: 6d 12h 9m Buy It Now for only: $78.74 Buy It Now | Add to watch list |
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More Great Information on Infrared Motion:
Protect Yourself and Your Family from Attack or Intruders by Chris Robertson
According to the U.S. Federal Bureau of Investigation (FBI), violent crime is on the rise. The FBI estimated that over 1.4 million violent crimes occurred in 2006 (the last year for which complete data are available), an increase of almost two percent over the previous year. The Bureau found that aggravated assault topped the list of violent crimes, followed by robbery (31.6 percent) and rape (6.5 percent).
While these statistics are startling, those who have been victimized by violent crime and those who have had brushes with crime but managed to escape know that it's critical to protect yourself and your family from attack or intruders. According to experts, there are two primary ways to do so:
Home Alarm Systems
Home alarms are one of the best and easiest ways to both deter and detect crime. Even if you don't have the money to install a full system, there are products you can buy to help protect your home. Wireless home security systems, for example, can monitor windows and doors. Typically, if the system is activated and then breached, an alarm goes off, and the system's base unit will consecutively call phone numbers on your programmed list. When someone answers, he or she can choose between listening to the activity in the room, speaking through the base unit so anyone in the room can hear, or disarming the system.
Similarly, motion alarms can be set to protect certain areas. You can set one up so that it covers the area near your front door, and another that covers the area near your back door. If the system picks up movement, a loud alarm goes off and it calls a series of phone numbers that you pre-set. Most of these motion alarms use infrared technology to detect intruders.
Personal Security Devices
There are two primary ways of defending yourself against attack: mace pepper spray and personal alarm systems. Mace pepper spray is a self defense product that is made from what are, essentially, chili peppers. The pepper is suspended in fluid and then aerosolized into a spray. You can buy pepper spray in small, easy-to-carry containers that can easily be put on a keychain or tucked into a handbag. Some states in the U.S. have restrictions regarding the legality of pepper spray, either in terms of who is authorized to buy it or the strength of the spray, so you should check your state's laws before you buy.
Personal alarm systems are in some ways similar to home alarms, except they're small and easy to carry. These devices' features vary by model, but can incorporate a high-decibel alarm and a flashing light. They are usually activated by either pulling a pin or pushing a button and are effective because they draw the attention of passersby, and hopefully cause the criminal to run.
Of course, there are a number of other steps you can take to protect yourself and your family from attack or intruders. For example, you should regularly review and practice the steps you will take if you are confronted by a criminal in a variety of scenarios. Experts often say that those who survive attacks are people who have trusted their intuition, planned possible escapes ahead of time, and kept a clear head throughout the crisis.
Chris Robertson is an author of Majon International, one of the worlds MOST popular internet marketing companies.
For tips/information, click here: Protect yourselfVisit Majon's Family and Children directory.
Article Source: http://www.earticlesonline.com/Article/Protect-Yourself-and-Your-Family-from-Attack-or-Intruders/305606
Confused about Infrared motion detector?
Is the infrared photodiode the same thing as the LED?
It says the output can be a LED, sure. But also that the frequency is near the LED, are we talking about two different types of LED??
http://howcircuits.com/active-ir-motion-detector.html
C1 and L1 in IC2A`s feedback loop cause the op amp to pass only those frequencies at or near the LED`s 5 kHz modulation rate. IC2B`s output increases when the received signal is sufficient to drop the negative voltage across C2 below the reference set by R2. The output of this circuit is then attached to some load resistance, which can be an alarm or, for demonstration purposes, an LED.
In THAT schematic, are they the same component?
READ THIS!!! Is an Infrared LED the same thing as an infrared photodiode?
A LED is not the same thing as a photodiode. They are telling you that the LED light source is transmitting a 5 cycle light, and the photodiode in the receiver senses that light. The photodiode senses all light, but the receiver circuit only pass a signal from the 5 cycle light. This is so that the receiver is blind to ordinary light. This is so you could not shine a flashlight at the receiver, and sneak yourself past the beam.
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