Home Alarm Systems

An alarm system will only prevent entry if every door and window is equipped with an alarm. But alarms can keep a home safe by deterring strangers or thieves.

High-tech burglar alarms can be extremely intimidating, but most of them operate based on a very simple principle. All you need to make a burglar alarm is a loud noise such as a buzzer and a means...

Many burglar alarms are extremely sophisticated, utilizing numerous electronic components to protect your house. The concepts behind a burglar alarm are extremely simple and don't require a lot of...

The Reporter Wireless Alarm is also known as the Chamberlain Wireless Pedestrian and Vehicle Alert System. The alarm alerts you with a sound as well as a flashing green light if motion is detected...

An alarm system will only prevent entry if every door and window is equipped with an alarm. But alarms can keep a home safe by preventing strangers or thieves from entering it.

There are three main types of alarms: Burglar, fire and safety. The two types of burglar alarms are open and closed, which both run off circuits. The alarm itself is made of one electric circuit...

Home alarm systems are based around a very simple system: a loud noise and a means of triggering it. Fancy home alarm systems use radio signals to keep multiple components online and can enact...

A remote alarm allows you the chance to protect your possessions, even when you're not in the room. A sensor attaches to a simple setup and emits a loud buzzing or high pitched sound when the...

In essence, all alarms are battery alarms. Those on an electrical circuit simply use the house's power as their "battery," which runs the siren or buzzer. The only other essential element is the...

Stairs can be rigged with an alarm the same way a door or a window can be protected. You can use tripwires or a laser light stretched across a stair to trigger an alarm whenever anyone passes by....

Alarm circuits are based on one of two models, differentiated by how they activate their siren or buzzer. A closed circuit alarm normally has electricity running through it, which prevents the...

Fire alarms operate according to the same principles as burglar alarms. They need a signal such as a buzzer, a power supply to run the signal, and a trigger to activate the signal. The key...

Burglar alarms can be simple or complex, but all of them are built around three basic components: a bell or alarm, a battery to power it, and a trigger switch. When someone triggers the switch, it...

This is a plan for a very simple burglar alarm. When the door is opened, it will close the circuit, causing a buzzer to sound. It has the advantages of being easy to put together and cheap to...

Having alarms hidden around the house can make a person who lives alone feel a little more secure. Alarms can also be a big help to the parents of toddlers. Toddlers are always getting into...

Do you have toddlers who wake up at night while you are sleeping and wander through the house? It would be great if you could make a simple alarm to alert you whenever they do. After all, you...

Building an alarm circuit is one of the easiest circuits to make. There are two type types of alarm circuits: a closed-circuit system and an open-circuit system. Here are the steps to construct a...

This is a good little buzzer alarm if you don't have to secure too many entrances. It requires limited resource and electronic skills. It is designed to use a single switch which is triggered when...

The problem with a simple security alarm is that security is not always compatible with simplicity. This alarm will make a buzzing sound when it is activated and nothing more. It is easy to...

This is about the simplest electronic alarm that you can make. When someone enters the room the door opens, an iron plate attached to one part of the circuit contacts a magnet attached to another...

This is a simple alarm that will beep when someone enters the door in your bedroom. It is cheap and easy to make. It will beep as loudly as you want, depending on the buzzer you use. It is also...