PCB Piezotronics 378A07 Free-Field Prepolarized Microphone

The PCB Piezotronics 378A07 is a precision 1/2-inch free-field prepolarized microphone designed for high-accuracy acoustic measurements. It offers a wide dynamic range, low noise floor, and excellent frequency response, making it suitable for sound level meters, acoustic testing, environmental noise monitoring, and general research applications. The unit features stainless steel construction for durability and comes in a protective storage case.

Key Features:

• Type: 1/2″ free-field prepolarized condenser microphone

• Frequency range: 3.15 Hz – 20 kHz

• Sensitivity: ~50 mV/Pa (±2 dB)

• Dynamic range: 16.5 dBA – 146 dB

• Polarization: Prepolarized (0V)

• Connector: 10-32 or BNC (via preamp)

• Applications: Acoustic testing, noise monitoring, R&D, sound quality analysis