💡 Professional Sound Level Meter for Accurate Noise Measurement

Noise affects comfort, productivity, and even health.
The FNIRSI FDM01 Digital Noise Meter provides ±1.5 dB precision and A-weighting response, helping you accurately monitor sound levels in homes, workplaces, or industrial environments.

Whether for construction sites, classrooms, factories, or environmental testing, the FDM01 delivers professional-grade readings in a compact, easy-to-use design.

🔧 Key Features

• High Accuracy (±1.5 dB) – Ensures stable, precise readings for professional results.
• Wide Measuring Range (30–130 dB) – Ideal for both quiet and noisy environments.
• A-Weighting Filter – Simulates human ear sensitivity to different frequencies.
• Fast / Slow Response Modes – Switch between FAST for sudden sound spikes or SLOW for stable ambient readings.
• Complies with International Standards – Meets IEC 651 TYPE 2 and ANSI S1.4 TYPE 2 standards.
• Auto Power Off Function – 15-minute auto shutdown (can be enabled/disabled) to save battery life.
• Compact & Ergonomic Design – Lightweight, handheld device for one-handed operation.

📊 Specifications

🌍 Suitable For

• Home noise monitoring
• Construction and factory environments
• Schools and laboratories
• Environmental and safety assessments
• Audio equipment testing
• Office and meeting room sound control