Infrasound Calibrator Type IFC-2
Infrasound Calibrator Type IFC-1
Low Frequency Pressure Chamber Type PF-12
Low Frequency Pressure Chamber Type PF-12 is a source of sound pressure in infrasound frequency range for measurements in a lab conditions.
The chamber is intended for checking of sound level meters in low frequency range and testing frequency response of measuring microphones in infrasound frequency range.