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Meters > Sound Level Meters > 4220 Pistonphone by Bruel & Kjaer

4220 Pistonphone

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Product Description & Specs

Portable sound source for calibration of sound level meters using 1/8th to 1 inch microphones. Provides nominal 124dB (?0.2dB) re 20uPa sound level at 250Hz. Calibration accuracy ?0.15dB.

E-mail or call us at 800-582-8378 for more information.

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