Audible Warning Signals

We use audible warning signals every day in our daily lives albeit it in different forms – whether it be your alarm clock waking you in the morning, a bell to signal lunch break or a louder noise to signal an emergency situation.

When used for industrial purposes, there are some aspects you need to consider before choosing the correct signal.

Firstly you need to consider what type of audible warning signal you require from a range of:

Air horns

Air horns are a good option for industrial & marine areas and hazardous areas. It is a non-electrical device with a high db output and low frequency making it ideal for noisy environments.

Electronic sounders

In today’s world of technology, an electronic sounder is the most versatile product to use as this can be programmed to offer multiple tones and db selections for almost every requirement.


Bells are suitable for daily signalling use that produces medium db output. Most commonly found in schools and workplaces to alert for lunch breaks.


Hooters are a motor-powered warning device with a horn. It has a high db output with low sound frequency, ideal for indoor and outdoor use.


This is an electro-mechanical type of warning signal in a robust housing. They produce medium-high db output with a low sound frequency.


Sirens are a motor-powered device producing a unique sound due to its internal impeller.

You now need to take into consideration the sound level and frequency rating of your chosen alarm – this needs to be heard instantly and distinctly above any other noise in the area, for example above machinery noise.

Next you need to consider the power consumption, electrical supply and IP rating of your chosen alarm and check with your engineer this will be suitable for your application.

Lastly you need to ensure you choose a quality product that will stand the test of time so to speak. By purchasing a quality product to begin with, it will save you time and money in the long run in maintenance, especially if the alarm is located in a hard to reach area.

See more on our range of audible warning signals:

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