The QC-10 and QC-20 calibrators provide quick, precise field calibration. The calibrator generates a stable acoustic signal at a controlled frequency and amplitude to verify the accuracy of your meter in the field.
Recommended for use with ANSI and IEC Type 1 meters
User selectable 94 or 114 dB and 250 or 1,000 Hz frequencies generate four different outputs
Both models have a standard one-inch coupler opening that may be reduced by inserting available snap-in adapters. The calibrators provide a precise 1-volt RMS output signal via a 1/8 inch phone jack to check devices.