This model includes a 1/2" microphone cartridge, a mated preamplifier with TEDS, and system calibration.
Nominal Microphone Diameter: 1/2"
Frequency Response Characteristic: Free-Field
Frequency Range: (±2dB)3.5 to 20000 Hz (3.5 to 20000 Hz)
Dynamic Range: 138.5 dB re 20 µPa