Noise Meter with NIST Type 2 35 to 130dB dB Range Frequency Range 31.5 to 8kHz A and C Frequency Weighting Accuracy +/-1.5 dB Resolution 0.1 dB Display 4 Digit Backlit LCD (4000 Count) 4 000 Counts Fast 125 ms Slow 1 sec Response Time Not Applicable Interface Microphone Type Electret Condenser Microphone Size 1/2 in Standards ANSI S1.4 Type 2 IEC 61672-1 Type 2 Criteria Levels 35 to 130 dB Records Up To Not Applicable Threshold Level Not Applicable