Measurement microphone 4189

prepolarizedfree-field1/2"

Overview
Type 4189 is a prepolarized ½" free-field microphone cartridge designed for precision sound measurements. Intended for integration with professional measurement systems requiring Class 1 performance.

Key features

• Prepolarized free-field microphone cartridge
• ½" (0.5 inch) diaphragm
• Free-field acoustic response optimized for on-axis measurements
• Compatible with IEC 61672 Class 1 instrumentation

Applications

• Sound pressure level and environmental noise measurements
• Laboratory calibration, acoustic research and R&D
• Integration with sound level meters, data acquisition systems and calibrators

Standards & compliance

• Suitable for use in systems compliant with IEC 61672 Class 1

Technical specifications

• Model: Type 4189
• Type: Prepolarized free-field microphone cartridge
• Diaphragm size: ½" (0.5 inch)
• Intended use: Precision sound measurements / free-field applications
• Standards: IEC 61672 Class 1 compatible