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Class 1 acoustic calibrator with 1 in opening and output of 114 dB re 20 uPa at 251.2 Hz. Includes ADP019 adapter for 1/2 in microphones and calibration certificate
[1] Initial Accuracy [2] Accuracy After 1 Year [3] Typical. [4] Alkaline type recommended for longest service life.
* All specifications are at room temperature unless otherwise specified.
Product Manual for CAL250
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