Spec：For quick and easy calibration of sound level meters and sound measuring systems.
* Handy sound source for quick and easy calibration ofsound level meters and sound measuringsystems.
* The Calibrator employs solid state integrated circuitrythat provides accurate and stable performance.
* Sensitivity calibration of microphones.
* Suitable for field and laboratory use.
Model:ND9A/ND9B
Standards:GB/T15173,ANSI S1.40 CLASS2,IEC942
Sound Pressure Level:94 dB94 dB
114 dB114 dB
Accuracy:0.5 dB(A),0.3 dB(B)
Frequency:1000Hz
Cailbration Of Microphones:1’’,1/2’’
Power Supply:1x9V 6F22 Battery
Dimensions:142x47x47 mm
Weight:275g(Including Battery)
Standard Accessories:Main Unit
Windscreen
Carrying Case (B04)
Operation Manual
Optional Accessories:
RS-232C Data with Software
Bluetooth Data Adapter with Software
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