In keeping with our history of proven reliability, Sierra Detention Systems represents the Cerberus Pro Fire Alarm products from Siemens, which excels in fast, reliable fire detection, alarm signaling, and control. These products provide maximum safety and optimal protection for your building’s occupants and assets. Our NICET certified staff performs complete design and engineering, installation, service, repairs, troubleshooting, and diagnostics. Take confidence in knowing your building is protected with top-rated products and engineered by experienced professionals.