Eta100 Ultra

Optical Microphone

XARION's Eta100 Ultra membrane-free optical microphone allows coverage of the acoustic frequency bandwidth from 10 Hz to 1MHz with a single sensor head.
The system was also designed for very high sound pressure levels up to 180 dB (A) SPL.


  • Membrane-free optical microphone
  • For very high sound pressure levels
  • Frequency range: 10 Hz–1 MHz (acoustics and ultrasonics)
  • Dynamic range: 80–180 dB (A) SPL