Vintage Universal Security Instruments Siren Alarm 12 Volt tested Works

Vintage Universal Security Instruments USI SA-1 Emergency Police Siren

VINTAGE SWIVELIER POLICE SIREN ALARM HORN and LIGHT; MADE IN YUGOSLAVIA, V. LOUD

Security Siren Alarm 7.5" by Empire Machines & Systems Security Products 12V

Siren 12-Volt Chrome New USI

Vintage Tripp Lite 115V Electric Air Raid Siren LOUD

RARE VINTAGE KLAXON HORN SIREN DC 240 VOLT WW2 1930'S - 40'S

Vintage 6" Faraday USA Made, Elevator Emergency Alarm Bell N276001 110vac