Option class 1 module based USB Microphone

This option includes a IEC60651 class 1 compliant capsule with 50mV/Pa 1/2" thread 60UNS 50mV/Pa individual calibration chart Without additional charge you can choose a 1/2" capsule with 20mV/Pa or a 1/4" capsule with 5mV/Pa. For a complete class 1 system you will need a base class 2 USB microphone and this class 1 option. You will receive the USB microphone with a high quality class 1 capsule instead of the class 2 capsule.   Please note, that this item is an extention to our USB measurement microphone. We can't sell this standalone.