The My Delta Pi webstore
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The My Delta Pi webstore
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ELECTRONICS EQUIPMENT FOR HOBBY AND PROFFESSIONAL USE
MENU OF ALL HOBBY AND PROFESSIONAL TECHNICAL EQUIPMENT
Security products for cars, houses and properties - Welcome to this online store of security products, like: Centrals, detectors, transmitters, receivers and alarms. Pleace click on a link to read more or by. By clicking at any link you will find many more security products and car equipment than those exhibited on this page.
At the bottom of this page you will find some general principles of security.
Security electronics for houses and
properties
The exhibited items are only examples. By clicking at the links, you will find complete product series, and complete equipment collections for the different systems.
Security electronics for vehicles
The exhibited items are only examples. By clicking
at the links, you will find the product that confirms exactly to your needs.
Spare parts, building parts, performance parts and equipment for your car
By clicking at the banners below, you will find all types of technical parts or styling parts to repair your car or to build up your car to a greater performance and style. You can shop car parts by type, by car model or by part producer. Just click at one of the banner and fetch the part with the exact specification you want.
Interior and exterior equipment for your car, styling parts, car electronics, GPS navigation. Also performance parts.
By clicking at the banner below, you will find a great collection of styling parts, comodities for your car, or comodities to bring with you on tours. You will also find car audio and video, GPS navigation tools and communication electronics.
Comodities for your car
By clicking at the banner below, you will find a great collection of comodities for your car, or comodities to bring with you on tours, lke tools, lanterns, Auto radio / stereo / music, communication electronics, security equipment, nevigation equipment, interior commodities, bags, seat equipment and more. There are also repair parts and performance parts.
Superstore with car workshop tools, GPS navigation units and much more
Through this banner, you will enter a superstore where you can find a lot of tools of any kind for car works. You can also find a huge variety of other types of products, like: car electronics, hobby tools, household items, garden equipment, herbs, herbal blendings, and a lot more.
Books, manuals, calendars, videos and collectibles about cars and motorized vehicles
By clicking at this banner, you will find all kinds of reading material and electronic media about: Modern and classic cars, auto racing, motorcycles, trucks, tractors, trains, boats, aviation, military history, bicycles, americana, and collectibles.
All kinds of remote controle models, airsoft guns and other hobby equipment
By clicking at this banner you will find a lot of remote control model cars, airplanes and helicopters. Most of the models are electric driven, but also high performance gas driven models are presented. Many of the small electric car and airplane models can be used indoor as well as outdoor, and you will find models suited for all ages and levels of experience.
An example from the many models available
Some other products
Create your own clothes - with Spreadshirt Designer - Here you can decide patterns, colors, figures and texts for your own clothes by an online interface, and order the clothes you have designed. The shop will send the clothes in 24-48 hours. You can design most types of clothes for women, children and teenagers with this service. You can create both fashion-like clothes, sport clothes or special clothes for use in workplaces, in clubs, in unions or for special arrangements.
For residents in US, please click at this banner:
Residents in UK, please click at this banner:
SOME GENERAL PRINCIPLES ABOUT SECURITY
Here are certain general principles of security. The principles are valid for any type of threat, such as fire, burglery, stealing of information, inuring program and data om PCs and servers, personal threats and so on. A total security strategy has the following aims.
1. To detect or recognize a threatening object, person or event, and distinguish it from non-threatening objects, persons or events.
2. To recogize what the threateing item aims at doing. Examples can be: Physical damage, personal attack, stealing of goods, stealing of information, destruction of information, disruption of business operation, etc.
3. To avoid a recogized threat to break through is a first objective when a threat has been recogized.. However, this is not allways totally possible within possible costs and practical conditions. Secondary aims are therefore:
4. To have public or private second-line aiding resources standing by, for example security guard companies, police, fire-guards or fire-department, and having means to allarm those resources.
5. To allarm aiding resources before the process off braking through begins. Such allarms should be authomatic if great values are in stake, but it must also be possible to contact them through telephone.
6. To slow down the break-through so long that the aid manages to come to assistance before the break is completed.
7. If the threat manages to break through and effect damage, there should be reserves in place that reduce the consequences of the damage to an affordable level. Reserves can be: Backup of data and programs, reserve computers or other machines, electricity generators, reserve hosting comodities. Instead of having physical resources at the place, contracts with backup delivering companies, and contracts about delivering spare equipment hithin a certain time limit, can be an althernative.
7. As a last line of resistance, you shoud have adequate insurance coverage, that will replace lost items and profit after damage. Insurance can be expensive. Therefore a full scale insuranse is not necessarily the right thing. However, the insuranse should be of such a scale that you can live along in a comfortable manner. and so that your business can carry along, also after the damage.
There is also an economical side of security. The security system must not be so expensive that it costs more than the averidge cost of expected attacks that it hinders. More precisely: The sum of the security cost pluss the expected damages that are not avoided, should be minimized.
The security measures must be in order, everybody using them must know about them, must know how tu use them and must find them when needed. The measures should also be comprehensive. There should not be any holes in themeasures. This includes telephone numbers to the police, the fire department, ambulance and engaged securyty guard comapies, Therefore:
1. All security measures must be clearly marked so that they easily are found when needed.
2. Every person must have got instruction in using the security measures.
3. When installed the mesures must be tested and must be retested at regular intervals.
4. People at the plase must have exercises in using the security mesures, where the responce of the people together with the measures themselves are tested.
5. The security measures must cover the whole area of interest.
One must make it clear to anyone planning to brake in or do sabotage that there are measures in place. However, it is usually not wise to indicate for them exactly where the measures, such as detecors an the like are placed.
About electronic detectors in security systems
An allarm system or an authomatic security system must have detectors placed on strategic positions in order to release an allarm or a counteraction. Detectors recognize some physical change in the surroundings and send a signal to the security system if some physical parameter exceeds some value. The system then realeases the alarm or action.
In advanced syetems, the detector may measure values of some parameters all the time and send all values of the parameters to the central unit. The unit then intrepretes the values and releases allarm or action if the values satisfy some set logical criteria.
There are many types of detectors, depending upon what type of physical parameter they recogize or measure.
- Vibration detectors react if there occur vibrations in the surroundings. They are typically used in burglary allarms. A vibration detector is typiclly placed at a door or a window and detect attempts to breake in at an early stage.
- There are detectors that recogize breakage in windows, doors or building contsructions. An example is current lines that causes a current interruption in a surcuit by breakage. This is a common type of detector used in burglary allarms. Such lines are often integrated in windows or doors.
- Infrared detectors measure the amount of infrared radiuation in the surroundings. Usually such detectors are used to detect fire.
- Some detectors recogize changes in the light intensity in a room. A subtype of these detectors have a unit emitting infrared light and fluctuation in the pattern of infrared light is detected. Such changes can then be interpreted as people in motion in the room and be used in burglary allarms.
- Some detectors recogize the componets in smoke, either smoke particles or gasses.
An example of smole detector is Ionic chamber smoke detectors. These have an electri curcuit where the current must pass an open chamber. Through the chambers alfa-rays emitted from a piece of the redioctive material americium 240 are sent. The rays ionizes the air in the chamber and allow a small current to go through the curcuit. When smoke comes into the chamber, the ions are neutralized by gasses and the current in the circuit is broken.
A photoelectric smoke detector have a light source and a light detector positioned at 90 degrees angle to each other. When smoke enters, the particles in the smoke wil reflect the light and some of it will hit the light detector.