Measuring Level: 30-130dB (a)/35-130dB (C)Accuracy: +/-1.5 dB (under reference conditions)Resolution: 0.1 dBFrequency Range: 31.5 Hz to 8.5kHzThe intervals of levels: 30-80dB, 50-100dB, 60-110dB, 80-130dB 30-130dBSample Rate: 2 secondsMicrophone: 1/2 & quot; Electret Condenser MicrophoneOverload indication: OVER/UNDERPower: 9 V DC DC 6 V 100mA (including battery)With 2 equivalent weighted sound pressure levels A and C.
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