Review on Powerful 100W SoundAlert Police Air Horn Kit With 120-130 DB Bullhorn Speaker And Manual Control Or Stock Horn Bypass For Emergency Vehicles by Len Cooper

I purchased one of these in spite of other people's feedback about low sound levels, so I tested this unit as soon as it came in. Mine is plenty loud; certainly louder than the stock horn on my F150. It isn't quite as loud as the "professional" LE siren/horn that you might find on a police cruiser or fire truck, but then those units cost several times what this one does, and may also be 200W models instead of 100W. In any case, this one was loud enough to cause the neighborhood kids to come snooping around to find out where the loud noise was coming from, and my daughter said that it was loud enough in our basement family room (I was testing the horn in our detached garage that's about 50ft away from the house, and the family room is in the basement on the far side of the house) to freak out her pet cats. A normal car horn just wouldn't do that. I also suspect that the sound can be made louder by using a full sized horn speaker instead of the compact one that this unit comes with.I don't think this unit is intended to replace those pricey pro units, so it's unrealistic to expect that it will perform to that level. If you want to sound like a real fire truck, spend the extra money to buy the expensive "pro" fire truck equipment. In my opinion this unit performs great for the money.