Reed Instruments R8090 (SC-05) Sound Level Calibrator for 1/2" Diameter Microphones, +/-0.5dB Accuracy
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<b>[Product Information]</b><br>
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<li>Generates stable acoustic signal at a controlled frequency and amplitude to verify the accuracy of your sound level meter</li>
<li>Simply place calibrator on microphone, turn on and adjust your sound level meter</li>
<li>Output sound pressure levels of 94dB and 114dB</li>
<li>Accuracy of +/-0.5dB</li>
<li>Accomodates 1/2 inch diameter microphones</li>
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