Delta Ohm

 

 

 

 

 

   
 





 
     
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Sound Calibrator
DELTA OHM HD2020

 
 

The HD2020 sound level calibrator is a portable, battery operated sound source, suitable for sound level meters (portable and laboratory) and acoustic stations.

Specification

• For standard 1/2" microphone

 Class 1 sound level calibrator according to IEC 60942:2003.

•LCD display. 

• Calibration frequency 1000Hz

• sound pressure levels 94dB/114dB.

 

 
     
 
   

 

 

 

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