What is a volume sensor and what is it for?
Probably every motorist at least onceleft his car on the street with half-open windows in summer or with an unclosed lock. Naturally, leaving a car in this form for the night is very dangerous, but today we will tell you about an instrument that can protect any vehicle from theft. This device is a so-called volume sensor. This device allows you to respond to the slightest movements inside the car and unlike the shock sensors does not give false alarms. So, let's figure out what this device is, how much it costs, what types are there.
What is it for?
The main task of each sensor is to react tothe penetration of thieves in the car and alert the driver with a beeping signal that someone is fumbling in the car. It does not matter whether your transport is open or closed. In any case, the volume sensor will notify its owner of various movements in a certain protected area (that is, in the cabin). False alarms are minimized here, since this tool reacts not to impact, but to moving or approaching intruders to the machine.
Varieties
To date, all existing sensorsvolume can be divided into three types: microwave, infrared and ultrasonic. The latter variety is the weakest and inefficient, and therefore it is almost impossible to meet such devices on cars. Microwave volume sensors are characterized by poor sensitivity to the movement of various insects and dust. And infrared devices are the most modern, effective and popular with domestic motorists.
Each volume sensor can be set toa certain range of action. But, in order for it to react in essence, it is necessary to establish it correctly. In each sensor model, the manufacturer himself indicates where and how to install it in the cabin. Some drivers even set an excessively large range of action, so that anyone who approached close to the car was "abused" by an alarm. But if you look at it from the objective side, then this setting is not effective, since every 5 minutes the driver will jump out into the yard and turn off the siren. And the battery does not benefit.
Also an important characteristic of the sensorsis their effectiveness in relation to the unauthorized penetration of intruders into the machine. And even if the thief quietly breaks the door or disconnects the impact sensors, it is unlikely that he will think about the existence of another security system, which will just raise the alarm.
Volume sensor: the price of the device
To date, the average costThe microwave sensor varies from 700 to 800 rubles. Well, the most effective, infrared, the device will cost 1,200 rubles. Given how useful these sensors can be, this cost is quite acceptable.
Remember - if you take care of installing additional security, your iron friend will never be hijacked by car thieves.
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