QUADRASONIC™️ DIRECTIONAL SIRENS
​& CO-ORDINATED FLASHING BLUE LIGHTS​
enable motorists to judge the speed and direction of Emergency Vehicles.
They can then take appropriate action,
without freezing or panicking.

Utilising A.I. and digital technology,
we have brought Twos & Blues into the 21st century.
​If you would like to arrange a demonstration,
contact:
[email protected]
+44 (0)7964 269 350
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PROTOTYPE DEMONSTRATION SYSTEM
​The two upper horns sound together followed by the two lower horns.
All four blue lights activate together, flashing in time with the sounds,
reinforcing the alerting and locating capabilities.
click here for video

​EARLY PROTOTYPE ROAD TESTING
The sirens' pitch changes as the car approaches and passes by.
​This is called the Doppler Effect and helps people judge speed, distance and direction.
click here for video

​QUADRASONIC SIRENS TESTING
Note the alternative roof and front grill mountings.
​The sirens are highly effective
​in a wide range of configurations.
​(click or tap to enlarge)

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- BENEFITS​ -
'QUADRASONIC' ™️ Sirens
are Easily Located by Motorists

- APPLICATIONS -
Fire & Rescue - Ambulance
Police - Coastguard
​Mountain Rescue
Blood Service - Air Fields

- REGIONAL SUITABILITY -
World Wide
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Directional sound beam ports and blue lights at the front, rear and sides,
in coordination with the enhanced Doppler effects, enable motorists to easily judge
when Emergency Vehicles are approaching or going away from them.

These features help motorists take
safe appropriate avoiding action,
​only when necessary.
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Emergency Vehicle operating QUADRASONIC ™️ sirens
correctly located by both motorists

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Emergency Vehicle with YELP! and WAIL! sirens
​incorrectly located by both motorists.

​BENEFITS OF QUADRASONIC ™️ DIRECTIONAL SIRENS

•  Quicker response times getting to emergencies
•  Gives independent directional information for second Emergency Vehicle
•  Clearer radio and verbal communications inside emergency vehicles
•  Does not induce panic or freezing reactions in motorists
•  Motorists react quicker and more appropriately
•  Fewer vehicle accidents involving rescue services
•  Cost savings from fewer repairs and compensation payments
•  Reduced hearing damage to personnel
•  Reduced driver stress

PROFESSIONAL EVALUATION

​"One issue of concern to many fire officers and the general public would appear to be that with the yelp and wailer sirens it is extremely difficult to detect where the sound is coming from.

Mr Brandon demonstrated directional sound signals he has developed, and it would appear that the use of directional sirens could reduce accidents and potentially reduce fatalities and injuries.

The Fire Service could benefit from reduced driver stress and cost savings from a reduction in the number of vehicles being off the road due to accidents"  

Operational Equipment Team Manager - Fire & Rescue Service

"Having discussed your research and development into directional vehicle sirens and audible warning devices, I must reiterate my support for this work.

Having been in a position to see the result of incidents where emergency vehicles have had occurrences which resulted in injury and death on the road, any advance in technology that would assist and improve the pre alerting of road users must be a benefit. 

The airport fire and rescue service would benefit from this technology, as responding to emergencies in low visibility causes problems for those awaiting our response"

​Watch Commander - International Airport

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​If you would like to arrange an online or live demonstration please contact
[email protected]
+44 (0)7964 269 350

​​​FIREFIGHTERS DO A DEDICATED DANGEROUS AND DEMANDING JOB
​THEY DESERVE THE BEST EQUIPMENT