Measurement Microphones

Professional measurement microphones, cartridges, preamplifiers and sound calibrators compliant with IEC 61672 Class 1 standard.

Measurement Microphone Sets

Photo	Model	Key Specifications
	ZT-331-507 Microphone Set -1/2''	1/2" IEPE power supply, Free-Field Measurement Microphone Kit; Frequency response: 3.15 Hz - 16kHz; Sensitivity: 40 mV/Pa; Compliance with IEC 61672 Class 1 Standard	Details
	ZT-333-507 Microphone Set -1/2''	1/2" IEPE power supply, Free-Field Measurement Microphone Kit; Frequency response: 10 Hz - 20kHz; Sensitivity: 50mV/Pa; Compliance with IEC 61672 Class 1 Standard	Details
	ZT-341-547 Microphone Set -1/4''	1/4" IEPE power supply, Free-Field Measurement Microphone Kit; Frequency response: 4 Hz - 40kHz; Sensitivity: 4 mV/Pa; Compliance with IEC 61672 Class 1 Standard	Details
	ZT-343-547 Microphone Set -1/4''	1/4" IEPE power supply, Free-Field Measurement Microphone Kit; Frequency response: 10 Hz - 90kHz; Sensitivity: 4 mV/Pa; Compliance with IEC 61672 Class 1 Standard	Details
	ZT-351-547 Microphone Set -1/4''	1/4" IEPE power supply, Free-Field Measurement Microphone Kit; Frequency response: 4 Hz - 40kHz; Sensitivity: 15.8 mV/Pa; Compliance with IEC 61672 Class 1 Standard	Details
	ZT-371-507 Microphone Set -1/2''	1/2" IEPE power supply, Free-Field Measurement Microphone Kit; Frequency response: 10 Hz - 40kHz; Sensitivity: 12.5 mV/Pa; Compliance with IEC 61672 Class 1 Standard	Details
	ZT-363 Array Microphone Kit-1/4''	1/4" IEPE power supply, Low Cost Array Microphone Kit; Frequency response: 20 Hz - 20kHz; Sensitivity: 50 mV; Compliance with IEC 61672 Class 1 Standard	Details

Measurement Microphone Cartridges

Photo	Model	Key Specifications
	ZT-333 Microphone Cartridge - 1/2''-FF	1/2" pre-polarization; Free field type; Frequency range: 3.15 Hz - 20 kHz; Sensitivity: 50 mV/Pa; Linear range: 15 - 146 dB; Compliance with IEC 61672 Class 1 Standard	Details
	ZT-331 Microphone Cartridge - 1/2''-FF	1/2" pre-polarization; Free field type; Frequency range: 3.15 Hz - 16 kHz; Sensitivity: 40 mV/Pa; Linear range: 16 - 140 dB; Compliance with IEC 61672 Class 1 Standard	Details
	ZT-334 Microphone Cartridge - 1/2''-PF	1/2" pre-polarization; Pressure field type; Frequency range: 3.15 Hz - 10 kHz; Sensitivity: 50 mV/Pa; Dynamic range: 15-146 dB; Compliance with IEC 61672 Class 1 Standard	Details
	ZT-332 Microphone Cartridge - 1/2''-PF	1/2" pre-polarization; Pressure field type; Frequency response: 3.15 Hz - 10 kHz; Sensitivity: 31.6 mV/Pa; Dynamic range: 16 - 140 dB; Compliance with IEC 61672 Class 1 Standard	Details
	ZT-341 Microphone Cartridge - 1/4''-FF	1/4" pre-polarization; Free field type; Frequency response: 4 Hz - 40 kHz; Sensitivity: 4 mV/Pa; Dynamic range: 30 - 160 dB; Compliance with IEC 61672 Class 1 Standard	Details
	ZT-342 Microphone Cartridge - 1/4''-PF	1/4" pre-polarization; Pressure field type; Frequency response: 4 Hz - 70 kHz; Sensitivity: 1.6 mV/Pa; Dynamic range: 30 - 170 dB; Compliance with IEC 61672 Class 1 Standard	Details
	ZT-343 Microphone Cartridge - 1/4''-FF	1/4" pre-polarization; Free field type; Frequency response: 4 Hz - 90 kHz; Sensitivity: 4 mV/Pa; Dynamic range: 30 - 165 dB; Compliance with IEC 61672 Class 1 Standard	Details
	ZT-344 Microphone Cartridge - 1/4''-PF	1/4" pre-polarization; Pressure field type; Frequency response: 10 Hz - 20 kHz; Sensitivity: 0.56 mV/Pa; Dynamic range: 60 - 175 dB; Compliance with IEC 61672 Class 1 Standard	Details
	ZT-352 Microphone Cartridge - 1/4''-PF	1/4" pre-polarization; Pressure field type; Frequency range: 4 Hz - 20 kHz; Sensitivity: 15.8 mV/Pa; Dynamic range: 20 - 140 dB; Compliance with IEC 61672 Class 1 Standard	Details
	ZT-351 Microphone Cartridge - 1/4''-FF	1/4" pre-polarization; Free field type; Frequency range: 4 Hz - 40 kHz; Sensitivity: 15.8 mV/Pa; Dynamic range: 20 - 140 dB; Compliance with IEC 61672 Class 1 Standard	Details
	ZT-372 Microphone Cartridge - 1/2''-PF	1/2" pre-polarization; Pressure field type; Frequency response: 3.15 Hz - 20 kHz; Sensitivity: 12.5 mV/Pa; Dynamic range: 20 - 160 dB; Compliance with IEC 61672 Class 1 Standard	Details
	ZT-371 Microphone Cartridge - 1/2''-FF	1/2" pre-polarization; Free field type; Frequency response: 3.15 Hz - 40 kHz; Sensitivity: 12.5 mV/Pa; Dynamic range: 20 - 160 dB; Compliance with IEC 61672 Class 1 Standard	Details

Microphone Preamplifiers

Photo	Model	Key Specifications
	ZT-507 Preamplifier - 1/2''	1/2", IEPE power supply, BNC port	Details
	ZT-508 Preamplifier - 1/2''	1/2", IEPE power supply, base-type, BNC port	Details
	ZT-512 Preamplifier - 1/2''	1/2", 90° angle, IEPE power supply, SMB port	Details
	ZT-547 Preamplifier - 1/4''	1/4", IEPE power supply, SMB port	Details
	ZT-510 Preamplifier - 1/2''	1/2", short, IEPE power supply, SMB port	Details

Sound Calibrators

Photo	Model	Key Specifications
	ZT-620 & ZT-621 Sound Calibrators	ZT-620 is of sound level of 94dB. ZT-621 is of both 94dB and 114dB, at 1000Hz. High stability, small size, and light weight. Battery powered.	Details