💡 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.
