Very Loud 145 dB. Electric Air Raid Siren
This 110-volt electric air raid siren is designed for heavy-duty use and boasts Thor-like power. With an effective range of nearly a mile in open areas, it's perfect for emergency alerts or for signaling lunch breaks at factories. The siren is made from sturdy steel housing and has many other potential uses.
Sound level: 145 dB.
Requirements: 110-volt electric current to operate.