No gas, no battery airhorns/klaxton

[matnoo]

Air horns that sound by blowing into them 130decibels? Thats quite loud even by electric or gas powered standards isnt it?

Anyone used one? What are they like? Seems too good to be true...

http://cgi.ebay.co.uk/Safety-Rescue-Powe...1QQcmdZViewItem


Mat.

 

[alan]

They work brilliantly, really loud; and if the diaphragm breaks it can be replaced with a piece of clingfilm. No batteries, no gas just your lungs !!!!

Alan. /forums/images/graemlins/cool.gif

 

[franky]

I use a "Blaster" mouth horn.
The loudness of the blast belies its size.

 

[rogerthebodger]

I have a nimber of these
very loud so the crew says

or this

 

[MoodySabre]

Much better than the trumpet type. I surprised myself /forums/images/graemlins/shocked.gif

 

[Phoenix of Hamble]

I've got one too..... really good..... very very loud!

 

[michael_w]

I've got a conch shell from Dominica.

Haunting noise which seems to carry further than most puff-powered fog horns.

 

[Boathook]

Had one for years now. Still has the original plastic in place. Being an early one it does not have the mesh across the end and the length can be extended by some 32mm diameter sink waste. This makes the tone even deeper ....

 

[[3889]]

I got mine from the same ebayer and agree it is excellent.

 

[sarabande]

130 decibels ? Which scale ? How far away from the end of the horn ?

No way when powered by human lungs.

 

[tobble]

Sarabande makes a very important point! there are lots of 'flavours' of dB's, won't bore with the details, but generally they are pretty meaningless unless you are certain you are comparing like with like, classic example being the 100dB claimed by £10 speakers while highend speakers costing ten times as much are rated at 30, but sound louder....

at the end of the day, try listening to them if possible! only way to be sure.

Tobble (BEng Acoustics, AMIOA !!!)

 

[roger]

hearing loss?

Most venues having popular music limit noise levels to something like 100dB - with 130 dB you could well be damaging your hearing after an hour or so in the fog,

 

[Superflid]

Re: hearing loss?

No idea of technical details about decibels, but I've used one and they're effing loud, easily as loud as the gas canister types I've heard!

 

[mobeydick]

Re: hearing loss?

Yes, v loud with little puff. Actually puffing hard doesnt seem to increase noise.

 

[Dave3729]

Re: hearing loss?

I have the wife over 230 db when in a mood.

 

[pheonix]

i purchased a similar one from compass a couple of years ago excelent bit of kit plastic diaghpram easily changed if damaged using any poly bag etc /forums/images/graemlins/tongue.gif

 

[DanTribe]

I've had a very similiar one for years.A salesman was demonstrating them at the Boat Show, but was soon asked to desist or he'd be farting through it.
Extremely loud, it can even summon our launch driver from his tea break.
A bespoke storage container can be purchased from Pringles, but make sure you eat the crisps first.
Dan