I came across this news item about 2 weeks ago and I really didn’t know anything about this until I did a little research but apparently the Police are unhappy with their current sirens in the US. They feel that sometimes while in the process of pulling over the driver, their sirens aren’t doing a great job if the driver isn’t paying close attention to what is behind them or if they have their music too loud. I have noticed that sometimes the sirens aren’t loud enough when I have the music going, well the “Rumbler” is a new siren that is said to fix all that.
This new siren is used along with the traditional siren and helps get attention mainly because it can also be felt. The siren can be felt from 200-300 feet away through the use of high output woofers and an amplifier. The main objective is to produce low frequency sound waves, kind of like a subwoofer that ends up shaking everything. The Rumbler does turn off automatically after 10 seconds and seem to be pretty effective.
They aren’t too expensive costing around $350 a siren and was developed by the Illinois-based Federal Signal Corp. It was apparently that motorists werent responding to the traditional sirens and hopefully the addition of the Rumbler can help them to either pull over or make way for patrol cars.
I was able to pull up a video of the Rumbler in action at night. I do not know too much about who took this video or where it was taken but I was able to acquire it through a little bit of searching on Youtube.
Here is another video of the Rumbler in action that was taken by a Police Officer. This one gives you the full Rumbler experience!