Thanks to modern electronics and information technology, many types of personal alarms with battery now available to anyone. These alarms are particularly useful for the elderly, children, youth, women, workers on the night shift, tired drivers, delivery people, joggers, walkers, people living alone, and the disabled. This article refers to the mechanisms of action of various types.
Security-conscious people, to overcome their physical vulnerability randomare good for personal alarms are likely. Of the elderly to small children or people in public places to walk in nature, these alarms are useful for security reasons. Even the police have alarms that send signals to their dispatcher when they should stumble and fall, or at the end of the plan for other reasons. In addition, travelers or tourists, could make the dog bark warning signs to pay for their motel rooms, cabins, tents. Multiple alarmThe types are listed below.
Medical alert (wired or wireless signal).
These alarm systems are aging, but active seniors with health problems. The same warning is usually a senior is worn on the wrist, or is on a nearby wall. Pressing the button, the wireless signal is a system on a main road near a wall or desk module, where an employee or nurse to answer the phone or on an intercom. Someone is then sent to the Housewhere the signal came. This alarm is similar to those hard-wired in the aisles. If it is connected to a telephone system, its scope is relatively short.
Transmitter-receiver (automatic signal for migratory children).
This alarm consists of a small transmitter and receiver of parents and children in public places, as used in department stores or shopping malls. The child wears the transmitter. The parent with the recipient. If aChild travels on a predetermined distance of 10-to-30 feet from the parent, a signal to the receiver, which makes in turn, sent a warning tone. The parent then takes the child and give him or her more personal than a second alarm in the vicinity of the parents to stay.
maker loud noise (shout, whistle, siren).
These alarms are of different sizes, but usually relatively small. But everyone is 90-130 decibels loud sounds to scare or discourage an aggressor or to winAttention and help. Some are managed switch, but it is the turn off when not pressed the button. That's why some of these messages a second button or removable pin that play to continue working if they are admitted to or removed from the hands of the holder. This type of alarm, as with other species are provided below in a pocket or bag, can or will be carried on a keychain. Children can wear around his neck.
Strobe light (flashing lights).
ThisSMEs alarm light flashing visible from relatively long distances. These devices are also switches, buttons or pull-pin function. They are particularly useful at night or in places where it is difficult to find a reverberant sound signal. Larger models can be worn on a belt for running or walking, or can be used as a warning to curb car stopped. These larger flashing lights can be seen from two or more milesout.
Combination (noise, light, and more).
These alarms are a combination of these two, and is some cases is also being built into a flashlight. One could continue with the defense-related products such as gas or mace pepper spray can be combined. This kind of combination popular with consumers because they give more warning of a variable, and is often a defense mechanism of repulsion or integrated in them asgood.
Other (situational).
Barking dog. The alarm of average size with a high quality speaker, it is useful for defense against foreign sales people, advertisers, lazy, or wild animals from their homes or sleeping in the open field. It works great for families or people living alone.
Over the ear. Catnap This one of the pilots who do not sleep, for example, could a machine operator or truck driver. When hisHeads begin to nod, there is humming or similar signals, in order to awaken immediately.
Door or door handle. This guarded the entrances, doors or windows to the patio motel or hotel rooms on the web. It works well for travelers.
Horn (not electronic)
These small pressure containers full of warnings to avoid dogs or anything else that you do not like loud noise. Hand operated, these horns can be very strong and the humanTimpano. Walkers, runners, cyclists and perhaps take.
In summary, two important issues for the election of a personal alarm 1) include ease of use and 2) their potential effectiveness. A good alarm system is one that can be immediately activated, and is more than likely to be successful in the majority of individual cases.
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