SDi DB02 Checker Sound Level Meter, Frequency Weighting

Verify audible alarm performance quickly and confidently with the SDi Fire DB02 System Sound Level Meter. Designed for fire, security and facilities teams, this handheld audio system testing device delivers NFPA-compliant Type 2 accuracy required for testing audible notification appliances and public operating modes of emergency voice/alarm systems. The DB02 measures from 32 to 130 dB across 31.5 Hz to 8 kHz, covering the full spectrum of horns, speakers and strobes used in modern fire and security systems. Built-in A and C frequency weighting, a 4-digit LCD with 0.1 dB steps, and an AC signal output let you capture meaningful readings for monitoring, documentation and troubleshooting. Lightweight and battery-powered (9V), the DB02 is easy to carry between sites and simple for technicians to operate during inspections, commissioning or routine surveillance of alarm performance. Whether you’re validating compliance with NFPA 72 or performing regular security system checks, the SDi Fire DB02 provides the reliable measurements you need. Order now to streamline alarm testing and stay audit-ready.

• Ensures NFPA-compliant, Type 2 accuracy so maintenance teams can reliably verify audible fire and security alarms
• Wide 32–130 dB range and 31.5 Hz–8 kHz frequency coverage to measure all common notification appliances
• A and C frequency weighting with AC signal output for precise monitoring and system integration
• Compact, handheld design with 4-digit LCD and 0.1 dB resolution for fast, repeatable on-site testing
• Simple 9V battery operation for hassle-free field use during inspections and routine maintenance