160db Plastic Horn with alternating two-tone diesel train horn sound.
Original Diesel train horn, NOT a cheap copy!
These horns can be switched from your existing horn switch, or from a seperate one through a relay(not supplied).
They are designed to be used from your trucks secondary air supply, and we recommend that this work is carried out by a qualified fitter.
Please note these horns require an air pressure of between 90-100psi to operate.