PLACID Instruments - Model PMP20 -Measurement Microphone Cartridges for Soundlevel Meters & IPE

Placid PMP20 Class 1 microphone. PMP20, Class 1 microphone, 0 Volt polarization voltage, free field, 20Hz – 40 kHz. Model: PMP20. Diameter: 1/2″. Standard (IEC61672): Class 1. Measuring method: Free field. Frequency response: 20 – 40 kHz.