Our gas horn is a low cost, effective and top quality solution for any company's signalling needs. All of our gas horns are designed, manufactured and tested in the UK and guarantee to be loud enough, at 120Db, to be heard over working environments, machinery and other industrial noise.Typical uses include:* On site alarm system* Back-up alarm system for any company* Primary alarm system for smaller companies* Emergency signalling system for workers on manufacturing floors* Confined space alarm system* Personal protection