The Federal Signal SD-10, introduced in 1954, stands as a pioneering model in the realm of emergency warning systems. Characterized by its robust design and powerful sound output, the SD-10 delivers a formidable 109 decibels (dB) at a range of 100 feet. Crafted with high-strength aluminum alloy, it boasts longevity and resilience against harsh environmental conditions. This siren has found widespread application in emergency management, industrial safety, military installations, and civil defense, serving as a beacon of reliability and effectiveness in safeguarding lives and property during emergencies.