· Accuracy: +-1.5dB
· Response frequency: 31.5Hz-8kHz
· Dynamic range: 50dB
· Frequency Weighting : A\C
· Time weighting: FAST 125ms, SLOW 1sec
· Microphone: Electret Condenser microphone
· Digital Display: 4 digitals, resolution 0.1dB, sampling rate 2 times/s
· Analog bar display: Each analog bar is as 1 dB, sampling rate 20 times/s
· Measurement ranges: 30-80dB, 40-90dB, 50-100dB, 60-110dB, 70-120dB, 80-130dB, Total of 6 ranges
· Auto-range: Micro-computer can choose the best measurement ranges
· Over range indicator: UNDER (less than range) and OVER (over range)
· AC signal output: 0.707 Vrms at FS (Auto-range mode isn't included) Output impedance approx. 600Ω
· DC signal output: 10mV/dB Output impedance approx. 100Ω
· Power supply: Four LR03 AM4 1.5V SIZE AAA alkaline cells
