PCE Instruments Class II sound - calibrator

Class II sound calibrator with various sound pressure levels, ±0.4 dB accuracy, frequency 1000 Hz for frequency weighting A, B, C, and D, 1/2 inch microphone opening, powered by replaceable batteries, sound class 2. The calibration frequency is 1000 Hz and is a sine wave. Compared to other calibrators, this Class II sound calibrator has three adjustable sound pressure levels: 94 dB, 104 dB, and 114 dB, which can be selected at the push of a button. Thus, an additional 104 dB sound pressure level is available. With an accuracy of ±0.4 dB, the Class II sound calibrator is particularly precise and allows for the verification and adjustment of sound measuring devices. Optionally, the Class II sound calibrator can be equipped with an ISO certificate. With a battery life of 50 hours, the Class II sound calibrator has an exceptionally long operating time. The integrated automatic shut-off feature turns off the calibrator after 20 minutes of inactivity.