Home / Fire Products / Large Signal Air Horn Large Signal Air Horn$33.00 Large Signal Air Horn quantity Add to Cart Cost to deliver will be advised in an email.You have the option to collect from store as well. Category: Fire Products Description Description Our signal horns use an ozone-friendly propellant and signal up to 1500 metres. An important part of craft’s safety. No CFC emissions Non-flammable Used by sporting clubs, schools and industry Replacement can available 380ml capacity