Misuratore di livello sonoro digitale volume rumore lettore decibel tester A/C F/S Max Hold US
✅ Fast & Slow Response Modes for Various Noise Types. Level Ranges: 30–80 dB, 50–100 dB, 60–110 dB, 80–130 dB. ✅ AC & DC Output for External Analyzers and Recorders. √Max Hold Function. DC Output: 10 mV/dB, impedance ≈ 100Ω.