1/2" electret condenser microphone for high accuracy and longterm stability
Data Hold, Max Hold and low battery indication
Carrying case and 9V battery included
Specifications: Range: Low: 35 to 100 dB; High: 65 to 135 dB Accuracy: ±1.4 dB Frequency: 31.5 Hz to 8 kHz Time Weighting: Fast/Slow (A & C) Power Supply: Single 9V battery Dimensions: 8.3 x 2.2 x 1.3" (210 x 55 x 32mm) Weight: 8.1 oz (230g)