˜Fast Response Sound Level Meter For Classroom/Home Use
Usually in a very quiet room, this value will not fall below 40dB, which is normal. Accuracy: ±1.5dB (Based on Standard Sound Source, 94dB 1KHz). Resolution: 0.1dB (<100db) 1dB (>100dB). Frequency Response: 31.5 Hz~ 8.5 Khz.