Cirrus research CR511E Acoustic Calibrator User Manual
Learn how to accurately calibrate your sound measurement equipment with the Cirrus research CR511E Acoustic Calibrator. This manual provides instructions for using the cost-effective and accurate CR511E, which can be used with various microphones and provides two reference levels of 94dB(1 Pa) and 104 dB (3.16 Pa). Produced by Cirrus Research plc in the UK.