These 300ml hand held push button gas fog horns are perfect for use on yachts and boats, as well as being great fun to use at sports events such as motoracing.
 
These horns can also be used as a temporary emergency signal, ie Fire Alarm. The 300ml canister houses an ozone friendly gas.
 
Push button operation, very simple to use
 300ml canister included
 High decibel alarm with an audible range up to 1500m