A lot of people live alone in apartments, and this makes them easy targets for robbers and muggers. There are a lot of robbers out there who scout their targets before they actually go to rob them. They try to pick out people who live alone, because they only have to deal with one person which is a lot less hassle. Than robbing an apartment with two or more people in it.
This is where the panic alarm comes in to play. There are different types of panic alarms, and the ones for home security is a great way to notify people that you are in danger. Most of the time, it will directly notify the police or the local emergency unit. These panic alarms are triggered by a button that may be wireless or wired depending on the manufacturer.
There is another type of home panic alarm, which lets you know if your door is opened by someone else. You just have to activate the alarm, and place it on the door knob. If the door knob is turned, the alarm will go off, thus letting you know you have an intruder.
There is a variant of the home panic alarm, which is the personal panic alarm. This is a portable alarm which can be easily hidden. If you feel that you are being stalked, or followed, just press the button to let people know that you are not safe. This will also make your stalker go away for now as he would not want to get caught. You can call the police and let them know as well.
The third type of panic alarm is a type of a car alarm. When you are travelling, or going out for a road trip, this alarm will help you to keep yourself safe. Just place the alarm on the door and it will let you know if anyone is trying to open the door, or is getting too close to the car.