1/2" Electret condenser microphone for high accuracy and longterm stability
Internal 94dB calibration
Data Hold, Max Hold and low battery indication
Carrying case, windshield ball and 9V battery included
Specifications: Measuring Range: 30 to 130 dB_(A &_C) Resolution: 0.1 dB Accuracy: ±1.4 dB Frequency: 31.5 Hz to 8 kHz Time Weighting: Fast/Slow (A &_C) Power Supply: 1 x 9V battery Dimensions: 9.9 x 2.5 x 1.6" (251 x 64 x 40mm) Weight: 8.8 oz (250 g)