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![[42AE] Low Frequency Calibrator](/web/image/product.product/17050/image_1920/%5B42AE%5D%20Low%20Frequency%20Calibrator?unique=ada4743)
[42AE] Low Frequency Calibrator
14,640.00 CADThe GRAS 42AE Low-Frequency Calibrator permits microphone calibration at frequencies down to 0.01 Hz for both front and rear-vented microphones. It produces a constant sound pressure level down to very low frequencies. Includes power supply AB0014
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