Air Horn - 3AL 922 200-761 HELLA

Sound signal (klaxon, sound signaling device) - a component of the sound signaling, which is equipped with a vehicle. An audible signal is given as a warning to other road users, which helps to avoid dangerous situations. They are classified according to the principle of action, tonality and spectral composition.

As the demand for cars increased, the number of accidents on the roads increased significantly. In many cases, accidents can be avoided if you declare your presence on the road in time. This allows you to make a special sound signal - a mandatory component of any transport during movement.

The usage of HELLA brand Air Horn

The most popular option is pneumatic devices - the principle of their operation is the same as that of the first signals that appeared on steam transport or horse-drawn carts.

The main operating elements of the devices:

1. pipe;
2. membrane;
3. camera.

When the driver presses the signal for the car, a stream of compressed air hits the membrane, a sound is produced that is amplified as it passes through the pipe. The sound volume is different and can reach 120 dB; the tone is varied.