Is it legal to install an air-horn on a car?

I live in western New Jersey, and start work early (6am), so I an on the road (295 and 195) in the early mornings. For those who don't know, these are the roads truckers use to by-pass the toll roads. I am constantly being forced to swerve out of the way as these trucks don't see me or hear me. My Chevy Impalla has a horn that would embarass a moped. I want to install an air-horn in my car to make it easier for the truckers to hear me (I've driven in them, there LOUD inside and out!!) I searched for N.J. Horn Regulations, but only found that a car horn has to be heard at a distance of 200 feet, and a motorcycle or bike horn at 100 feet. I want to put an air-horn in my car as I said, but heres the dilly: I work for a utility company, and currently worked a train wreck job, and I was allowed to take the triple trumpet air horn that still works, I can hook it up, but I don't want to break the law; can anyone offer any insight as to the laws governing air-horns in cars (especially in N.J.)
THANK YOU IN ADVANCE!!!

 

you would have to check local noise ordnances but there probably are not any problems other than the amount of air it would require to run. don't you run your lights that early?

Murphy was an optimist

 

A number of motorcyclists run a compact air horn which generates a 139 db sound level. They say it causes little old granny drivers to run up on the curb. They run around $ 40.

 

Probably going to take a heck of a compressor/air tank to operate that horn.

 

I had truck horns on my motorcycle--nobody ever made a left
turn into my lane--

 

Hi Gunguy45. It is actually a very small unit About 5"X5"X3".
Do a search for stebel horn or check this link.
http://www.twistedthrottle.com/trade/productview/2137/

 

goldstar...I know the type yer talking about, lots of bikes out here with similar things.

I meant the triple horn of the OP. If it came off a truck or a train, they have big compressors and storage tanks IIRC. Don't know how you'd run it from anything on a car.

 

If you install an air horn on your vehicle, I'd reserve its use for emergency situations only and avoid residential neighborhoods in the event of decibel violations.
NJ Vehicle Statutes:
39:3-69 Horn and/or Audible Warning Device
Every motor vehicle shall be equipped with a horn audible from a distance of not less than 200 feet used only when necessary to ensure safe operation.
39:3-77 Unapproved Equipment or Devices
No person shall sell, offer or use any unapproved device or equipment for use on a motor vehicle.
http://www.newjerseycriminallawattor...e-Statutes.asp
A call to NJ DMV would clarify if the air horn you plan to install is unapproved.

 

Take a look at this site
http://www.hornblasters.com/
Worth a laugh