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Signal M4 ALA for buses, complete set with two trumpets, available for 12V & 24V, especially produced for the Italian market, Fiamm code: 921998

Product number


Default delivery time

2-4 Work Days

€ 59,50
Price per set



How Italian and French can you get!?
With these air horns you'll bring some Italian sound to your vehicle.
These horns are produced by Fiamm for the Italian public transport.
Busses and coaches use it as an extra warning signal.
Even better: some Pro cycling teams also use it as Tour horn in their team cars.

So with this musical air horn set you'll have the Giro d'Italia and Tour the France all in one under the bonnet. The set comes in both 12v and 24v.

Delivery includes:

2x red horns
1x M4 compressor

Product information           Technical details
Material plastic   Voltage 12V/24V
Length 33cm - 30cm   Current 8A/17A
Trumpet Ø 7cm   Volume 116dB
Fiamm Code 921997 / 921998*   Frequency 390Hz
EU-Registration 10 ECE     490Hz

*921997 for 12V; 921998 for 24V
Please note:

You will need a 12 volt or 24 volt power supply or battery on board for this acoustic device.

Official dealer of:

We ship with:



Izaak Enschedeweg 50
2031 CS Haarlem

t: 0031 (0) 23 58 48 343