air/dixie horn

[the snooper]

loads on ebay even from trains quite cheap aswell

 

[pedrobedro]

Have a look for a Stebel Nautilus which is a compact twin tone which sounds both together so it is legal but it kicks out 139db. Don't test it in the garage unless you have earplugs in

 

[Robotstar5]

I had a 100W siren/PA (for rally use) on my LR, the "bullhorn" was quite effective for road use

 

[madkayaker]

have a 24V snail horn to fit to the landy when i get round to fitting it

 

[SC_BK]

I fitted a cheapo two tone air horn to my van under the bumper, £12 off ebay and sounded funny

It's no longer working though, think the salt water got to the compressor, never got round to looking at it

 

[overload]

Have a look for a Stebel Nautilus which is a compact twin tone which sounds both together so it is legal but it kicks out 139db. Don't test it in the garage unless you have earplugs in

+1 Stebel Nautilus is a great bit of kit!