Pistonphone calibrator
PCB Piezotronics
Pistonphone, 114 dB at 250 Hz, battery operated (for calibration of 1/4"" or 1/2"" microphones)
Operating Frequency: (±0.5%) 250 Hz
Output: (±0.08dB) (Sound Pressure Level) 114 dB re 20 µPa
Distortion: <1.5 %
Configuration: Hand-Held
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