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The HD2020 sound level calibrator is a portable, battery operated sound source, suitable for sound level meters (portable and laboratory) and acoustic stations.
Specification
• For standard 1/2" microphone
• Class 1 sound level calibrator according to IEC 60942:2003.
•LCD display.
• Calibration frequency 1000Hz
• sound pressure levels 94dB/114dB.
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