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Wednesday 24 June 2015

How to Choose and Buy the best Burglar Alarm System?

Do you want to install a new burglar alarm system for your Home or Office? If you are indecisive because of performance and quality issues, or if you don’t know how to choose the best alarm system, read the rest of this article for some inspiration.

Before purchasing a high quality alarm system that has advanced features, the first thing you should do is know the features of the place that you are going to buy the alarm system for, fully and then make your choice according to that. There are many variables such as the location of the place where the installation is going to take place (garden floor, upstairs and attic…), how many rooms it has, the size of the rooms or the number of kitchen, bathroom and other entrance doors and windows. That’s why, before you choose your burglar alarm system you should know about these features fully.

If you are going to work with companies that install alarm systems, the expert staff will do all the necessary calculations for you and take care of the full installation. If you are going to do the installation yourself and if you want to install the alarm system that will give the best performance, we will explain all the details that you need to know, below.

Home or Office Burglar Alarm System Calculations

As we mentioned briefly above, before you install the alarm system, there are several counts and calculations that you need to do. Those are:

Number of Rooms: When you install motion detectors in the rooms at home or in the office, they connect to the central system. When deciding the number of motion detectors you should know how many rooms you are going to install these in.

Number of Kitchens and Bathrooms: If there are any places that the motion detectors are going to be installed in addition to the rooms such as the bathroom or kitchen, the number of those should also be added to the calculation.

Entrances: Motion detectors are also going to be installed in the sections where the home or office entrance gates are.

Example: If there are 6 bedrooms, 2 living rooms, 1 kitchen, 2 bathrooms and 2 entrance doors in the house where the alarm system is going to be installed, at least 13 motion detectors should be bought for this house.

The size of the rooms: There are specific coverage areas for motion detectors. The two main features that affect the coverage area are:

Distance: Starting from the place where it is installed, it scans the area that is in the front within the scope of a certain distance. This distance changes according to the power of the motion detector.
Angle: Motion detectors scan a specific area to their left and right. The size of the area that is to be scanned is specified in the technical details of the detector. In the picture below, you can see how a motion detector does the scanning according to distance and angle.

Blind Spots: Certain rooms in your house or office are not square or rectangular and thus there are some areas that the motion detectors cannot see. In such cases, more than one motion detector is used. That’s why, when deciding on the number of motion detectors to be purchased, you should know about the blind spots in the room. In the picture below, the parts that the motion detector cannot scan are shown.

Garden and Roof Security: Depending on the floor where your house or office is located, you might need to buy extra motion detectors. In order to prevent theft attempts, for example through the garden or the roof, we recommend that you should install extra motion detectors around these areas.

Number of Windows: One of the easiest places to break into your house or office is through windows. There are detectors called Window Contact that are specifically produced for windows. When the windows are opened, it sends a signal to the central control unit and activates the alarm. In order to decide how many of these components that you are going to buy, you should know the number of openable windows at your house or office.

Number of Entrance Gates: The detectors we mentioned above are called Door Contacts here. You should get these detectors that have the same working principle in the number of your entrance gates.

Before purchasing a new alarm system, the values above should be known exactly. According to the numerical values you have, you can decide on what kind of an alarm system, sensor or control panel you are going to purchase. In the following sections of this article we will talk about various examples on this issue.

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How can you build your own Burglar Alarm?

Using a burglar alarm on your premises considerably decreases the risk of burglary. There are many types of home burglar alarm systems, each with different models and features as well as technical specifications. The start-up cost for these devices is generally over $100 and they come with various components and capacities.

Using homemade products is a great method of reducing the costs. We can make up our own alarm system by purchasing the necessary parts and putting them together. Purchasing all the necessary components and putting them together at home makes the same alarm system cheaper.

Basic Parts of Burglar Alarm System

To build a homemade burglar alarm, quite a few components are required. These can be broken into two groups;

1.) Main parts: Parts that are needed for the system to function such as the sensor, control unit and keypad.

2.) Miscellaneous parts such as a screwdriver, pliers, soldering machine, multimeter, screws, and cable for mounting the parts of the house alarm system.

Let’s take a look at the parts mentioned above in more detail.

Keypad or Switches: Keypad or switches are the most important components of the alarm system; these are needed for turning the system on or off, or to adjust various settings. You can buy branded keypads from as little as $30. Examples are 2GIG-PAD1, DSC PK5501ENG, NX-124E.

Main Control Unit: This is the most expensive part of the whole system. With prices starting at $70, the main control units are priced according to their capacities as well as additional features.

Motion Detectors: These are also obviously an important part of the system. These convey motion detection to control unit from a specific region (bedroom, living room, etc.). There are models with various capacities and features. You must use at least one for each room. Starting at $10, motion detectors are a basic component for the homemade alarm system.

Cables: Motion sensors, main control unit, battery, door and window sensors, and keypad are connected to each other with the cables. You need to have different length cables to connect all the sensors.

Telephone Auto Dialer: This is an optional component, calling the phone pre-programmed, if the alarm goes off when you are not at home. Starting at $30, telephone auto dialers can end up being very expensive.

Sirens: This component is also optional. It can be used on the system, if you want the alarm to produce a loud sound inside or outside of the house in the event of a burglary. Starting at $15, sirens have models with higher prices based upon their volume levels and technical features.

Door and Windows Sensors: Sensors are the components that are activated immediately when the doors or windows are forced, or if the burglar tries to enter into the house from these areas. If you want your alarm system to be more comprehensive, you can buy sensors, starting at $10, for each window and door of your house.

Research Details and Calculations

Before installing the alarm system you should do some calculations and make some decisions on a couple of things. Let’s look into them in a bit of detail:

1.) The Number of Rooms or areas to Use: The most important variable that we have to know is the number of rooms and spaces. You should buy the parts after you calculate and decide in which rooms and on what windows you are going to use motion sensors and where to install the main system. Do not forget that you should use at least one sensor for each room and window.

2.) Size of the Rooms: After you count the number of the rooms, you should calculate the size of the rooms so that you know how many motion sensors are required for each room.

3.) Location of Sensors: You should know where to put the sensors in a room. Motion sensors can scan specific areas according to their capacities so they are generally located on the corner of the rooms to ensure they scan as much of the room as possible. Keep in mind that you have to use more than one motion sensor if the room is square or rectangle. The location of the sensors is important because it defines how long the cables to use should be.

4.) The Location of the Main Control Unit: All the sensors, the keypad, battery and other components are connected to the main control unit so this should be located in a place where potential burglars cannot easily find, and it should also be a pretty central point for the cables.

5.) Fragile Zones: You can use more or stronger motion sensors in rooms with valuables. Although optional, it is recommended for homemade burglar alarm systems.

6.) The Capacity of the System: In light of the above mentioned information, the number of sensors and additional components to be used is calculated. The capacity of the main control unit is defined according to this calculation. The capacity of the main control system is generally preferred to be higher than this calculated value.

Before Setting Up a Burglar Alarm System

Before purchasing all the necessary equipment after the calculations, there are some things that you should know:

a.) Quality of Parts: The quality of the parts you should use is quite important. For example, a sensor you would like to buy for a room of 256 ft2 should scan all around the room. With a sensor of low quality with an inefficient scan, your system cannot work as required.

b.) Price Details: Although it may seem cheaper, homemade burglar alarms have some disadvantages. Examples are: the difficulties incurred during the installation, the high prices of the equipment when purchased individually, visual problems and functionality related problems due to the wrong setup.

c.) Parts Compatibility: Ensure that the components you buy for the alarm correspond with each other. You can choose the parts of the same brand or you can buy these parts if you know the features of the main control unit. For example, if your system works with 12V battery, buying a 6V battery would be folly; or you cannot connect a motion detector with 3 pins to a control unit with 2 pins.

d.) Cable Length: Make sure the cables you will use to connect parts altogether are long enough. Cables lose their ability of transmission and may sometimes have wrong transmissions when they are more than 30m – 98ft. For this reason the location of the main control unit is very important.

e.) Sensor Positions: We told you about how important the mounting position is. Another important issue is the special mounting of these sensors so as to prevent them from shutting down when opened from the back. Window and door entrances are the very first places the sensor must scan. Some advanced sensors have case temper protection and in the event of any interference, the automatic warning system activates.

Steps to Building your own Burglar Alarm

After you buy all the components, do the necessary calculations and preparing all the other devices, you are ready for the set-up.

Step 1: Firstly, the motion sensors are mounted to the places specified beforehand according to the calculations.
Step 2: If there are any window/door sensors, they are mounted. Incomplete or bad mounting prevents the parts from functioning. In these cases the alarms will not work.
Step 3: The main control unit is mounted as described earlier in the article. A metal box with a lock would maintain safety of the control unit.
Step 4: The battery system is mounted in accordance with the control unit. It is very important that you have a battery system. With this system the alarm unit still functions in the event of power-cuts. As the battery is heavy, you can mount it in a different location to the control unit, or put it in the control unit box which is mounted appropriately.
Step 5: The keypad is mounted on the control panel.
Step 6: The motion sensors and the control unit are connected to each other. It is important that the cables do not interfere with the surrounding decor. If possible, run the cables through the walls which is advantageous in terms of both security and visual quality.
Step 7: After you are finished with the cables, review all the sensors, cables and screws. If there any wrong connections, they should be corrected. It is suggested that you use a multi-meter while you are checking the missing connections.
Step 8: The system should be activated and checked to see if it’s functioning properly. If there are no problems, the sensors on the windows and doors are checked one by one. In case of any problems the connections need to be checked again.
Step 9: The auto dialer and other extra modules are connected to the system and checked if they are functioning properly.
Step 10: The battery is tested by cutting the electricity.
Step 11: A few days are needed for checking the whole system.

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Tuesday 23 June 2015

How to Buy Burglar Alarm Products?

After choosing the necessary parts, if you think about how and where from you should buy them, the best places for this are:

1.) Home Security Store
2.) aliexpress
3.) dhgate.ebay

Shopping online from these websites is safe and also you can buy any part of any model that you want. Also, by looking at the “best selling” products in categories, you can see which alarm system parts other users prefer.

With many articles that we will publish soon, we will introduce the bestselling home and office alarm systems and also those which have the most powerful features in detail. User comments and price-performance analysis will also be included in our review.

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How can you build your own Burglar Alarm?

Basic Parts of Burglar Alarm System

To build a homemade burglar alarm, quite a few components are required. These can be broken into two groups;

1.) Main parts: Parts that are needed for the system to function such as the sensor, control unit and keypad.

2.) Miscellaneous parts such as a screwdriver, pliers, soldering machine, multimeter, screws, and cable for mounting the parts of the house alarm system.

Let’s take a look at the parts mentioned above in more detail.

Research Details and Calculations

Before installing the alarm system you should do some calculations and make some decisions on a couple of things. Let’s look into them in a bit of detail:

2.) Size of the Rooms: After you count the number of the rooms, you should calculate the size of the rooms so that you know how many motion sensors are required for each room.

5.) Fragile Zones: You can use more or stronger motion sensors in rooms with valuables. Although optional, it is recommended for homemade burglar alarm systems.

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Top Tips for Deterring Burglars

One of the best ways of deterring burglars is to demonstrate that your home has active security. Highly visible alarm boxes and/or security cameras that can be seen from the street will act as deterrence before a thief commits themselves to breaking in.

Having good quality locks is a must, since a door, regardless of its sturdiness, is only as secure as its lock. It is advisable to have two different locks on external doors, one latch type lock that will secure the door automatically and a mortise or deadlock that should be used whilst the house is empty and before going to bed at night. Sliding patio doors should be fitted with anti-lift devices along with removable track locks.

Because burglars will take the path of least resistance, it is important to ensure that windows, especially on the ground floor, are kept closed when the home is unoccupied. Ladders should be stored inside a garage or shed. If you do not have a secure place to store them, then they should be protected by a lock and chain. Shrubbery should be trimmed regularly to avoid providing concealment for burglars and branches that might afford access to upper story windows should be cut off.

Deter Burglars from Your Home

Having good external lighting is an excellent deterrence. While motion detecting lighting is popular, it can be triggered by wildlife, or if incorrectly set by passing pedestrians or cars. An alternative option is low energy lighting fitted with photo-electric cells that automatically activate when the daylight level reaches a certain point. An added bonus with this system is that it will activate even if you are away. Although people commonly leave a spare key hidden outside, it is not a wise thing to do. A better option is to leave a key with a trusted neighbor.

If you have a basement it is a good idea to fit sturdy wire screens to the windows, and always leave the basement door locked, this also applies to doors that lead from a garage to the house. The use of timers to switch on and off lights while you are away is recommended. Never leave a light burning constantly since this is a dead giveaway that the premises are empty.

How to Deter Burglars?

Arrange for mail and newspapers to be picked up by a friend or neighbor or canceled for the duration of your absence. If you are getting work done to your car only gives themechanics the key to the car and supply your business address not your home one. Make sure you do not leave valuables lying in full view. Store jewelry away out of sight since a burglar is less likely to break in if there is little available reward.

Having a dog is a great deterrence but having on simply to protect your property is not a fair thing to do. Having a system that uses recorded barking may also be deployed. Even if the burglar is uncertain about whether you have a dog or not they are less likely to break in just in case. Always keep the doors and windows locked and carefully check identification before allowing anyone into your home.

Light up to Deter Burglars

Do not announce your absence by leaving a message on your answering machine saying you are not home. Leave a message asking for their name and number and that you will get back to them. Even if you have a security burglar alarm system fitted it is important to follow good security practices since an alarm is not a guarantee that you will not be burgled. It simply makes a burglar less likely to choose your property.

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