کالیبراتور صدا سی ای ام مدل SC-05

Sound Level Calibrator
94dB and 114dB Sound Calibration at 1kHz; Accurate and simple to use; Fits 1/2” diameter microphone.
Output Sound Pressure Levels 114dB and 94dB re 20 uPa under refrence conditions.
Output Frequency 1000Hz, ±۴%
Reference Temperature Conditions >23ºC (73ºF)
Atmospheric pressure >1013 mbar (760mm of Hg)
Relative humidity >65%RH
Accuracy of Sound Pressure Level Under stated reference environment conditions ±۰.5dB