Generic SC-05 Sound Level Calibrator for sound level meter 94dB and 114dB

Sound level Calibrator SC-05
Features:
1.94dB and 114dB Sound Calibration at 1kHz
2.Accurate and simple to use
3.Fits 1/2"diameter microphone
Specifications
Output Sound Pressure Levels
114dB and 94dB re 20 uPa under refrence conditions.
Output Frequency: 1000Hz, ±4%
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 ±0.5dB
Accessories:
9V battery, Carrying case,1/2"Microphone Adaptor (optional) and Clamshell.