Car articles — car alarms
Car alarm is the way to protect your car as much as possible from possible theft or from any other actions of scammers. Such devices can be equipped with additional functionality that increases the comfort of use. Questions about how to choose a car alarm is gaining in popularity.
Such devices are divided into the following types:
One-way alarms for cars: the most simple designs with minimal functionality. Often the radius of action of such structures is not more than 200 m. As an alert, the sound or light method is used. This option is suitable for budget purchases or for those who are interested in the ability to open a car remotely.
With feedback: devices with an LCD display, where basic information is displayed regarding the status of the machine. The owner of the car at any time can see what happens to his transport. On average, the range is 4 km. Some models include a variety of sensors as standard, which help improve auto protection.
With the GSM module: these devices are the most powerful among all. Their main difference is an unlimited range. Thus, the owner controls the condition of his car, wherever he is.
The choice of car alarm also depends on additional functions. For example, the ability to start the engine remotely or to block its operation. As a security feature, pay attention to the following characteristics:
Coding radio signal. Dynamic — for minimal protection. Dialogue — the most reliable option, often represents a modular design.
Range of radio signal. For information, 2000 m is needed, for control — 800 m. The values are indicated as minimum.
Number of radio channels. It is recommended that there be about 500: this minimizes the possible interference in the transmission of the signal.
In the choice of car alarms do not forget about comfort. So, it will be nice to start the engine straight from the house. This possibility is especially useful in winter, when you need to go out in advance to warm up the car. To start the engine it is possible on the timer, in advance on time, temperature. Management with mobile applications is not available in every model. But this possibility allows you to find out the location of the car for possible hijacking.
In general, if you select car alarms, you need to consider the range of the signal, the reliability of the entire structure against possible hacking of the system.