Acoustic Sensors
1/2-Inch Microphone Pair for Sound Intensity
Phase-matched pair of ½-inch microphones, designed for being used with Brüel & Kjær’s range of sound intensity...
1706 High Temperature CCLD Microphone Preamplifier
Designed to make acoustical measurements at temperatures up to 125°C (257°F) with a constant-current line drive (CCLD) input...
2260 1-Inch Microphone Preamplifier
20 dB GAIN, for Type 4179. Designed for very-low-level sound...
2260-W-001 1-Inch Microphone Preamplifier
20 dB gain, for Type 4179. Designed for very-low-level sound measurements. This is a modified version that can be used with PULSE using extension cable...
2669-B 1/2-Inch Microphone Preamplifier
Tapered, Including Cable AO-0428, BRÜEL & KJÆR Connector. Designed to operate over a wide range of temperature, humidity and other environmental...
2669-C 1/2-Inch Microphone Preamplifier
Cylindrical, LEMO 1B Connector, No Cable. Designed to operate over a wide range of temperature, humidity and other environmental...
2669-L 1/2-Inch Microphone Preamplifier
Tapered, Incl. Cable, 7-Pin LEMO Connector. Designed to operate over a wide range of temperature, humidity and other environmental...
2670 1/4-Inch Microphone Preamplifier
Integral 2m Cable with 7-Pin LEMO Plug. Designed to operate over a wide range of temperature, humidity and other environmental...
2670-WB-1419 1/4-Inch Microphone Preamplifier
Integral 2m Cable with 7-Pin LEMO Plug. Optimised for airbag measurements. Designed to operate over a wide range of temperature, humidity and other environmental...
2671 CCLD Microphone Preamplifier
For 1/2-Inch Prepolarized Microphones, Without Cable. Designed to be used in a wide range of environmental conditions and in narrow...
2673 Falcon Range 1/2-Inch Microphone Preamplifier
With Insert Voltage Facility. Designed to allow calibration of ½" and 1" condenser microphones by the insert voltage...
2695 DeltaTron 1/2-Inch Short CCLD Preamplifier
Designed for acoustical measurements with a CCLD input module. Prepolarized microphones can be connected to the...
2699 DeltaTron CCLD Microphone Preamplifier
A-Weighted. Designed to eliminate low-frequency disturbance caused by body boom and road noise during in-car...
3541-A Sound Intensity Calibrator
Type 3541-A enables calibration of sound intensity measuring instruments by using a coupler designed especially for sound intensity calibrations. Intensity-probe microphones are positioned in the coupler, which in conjunction with a pistonphone...
3599 Sound Intensity Probe Kit
Designed to be used with Brüel & Kjær’s range of sound intensity analyzers for sound intensity...
3654 Sound Intensity Probe Kit
Designed for use with Hand-held Sound Intensity System Type 2270 for measuring sound...
4138 1/8-Inch Pressure Field Microphone
6.5 Hz TO 140 kHz, 200V Polarization. Designed for very high-frequency measurements in confined...
4144 1-Inch Pressure Field Microphone
2.6 Hz TO 8 kHz, 200V Polarization. Designed for coupler...
4145 1-inch Free-Field Microphone
2.6 Hz TO 18 kHz, 200V Polarization. Designed for low-level and laboratory free-field measurements, it is also suitable for sound pressure measurements in accordance with IEC 61672 Class...
4176 1/2″ Free-Field Microphone
6.5 Hz TO 12.5 kHz, Prepolarized. Designed for measurements as required for sound level meters in accordance with IEC61672 class 1 and ANSI S 1.4 Type...
4178 1/4-Inch Sound Intensity Microphone Pair
4 Hz To 100 kHz, 200V Polarization. Pair of phase matched Type 4939 microphones designed for measurement of sound intensity for high level and high...
4179 1-inch Low Noise Microphone
10 Hz to 10 kHz (+/-2dB), 200V Polarization. Designed for measuring ultra-low sound pressure...
4180 & 4180 Laboratory Standard Microphone
4160 is a 1-inch microphone, 2 Hz TO 8 kHz. 4180 is a 1/2-inch microphone, 3 Hz TO 10 kHz. 200V...
4188 1/2-Inch Free Field Microphone
8 Hz to 12.5 kHz, Prepolarized. Economy microphone designed for measurements in transport-noise measurements, architectural acoustics and...
4189 1/2-Inch Free-Field Microphone
6.3 Hz to 20 kHz, Prepolarized. A general purpose microphone, designed for high-precision, free-field measurements where a 20 kHz microphone with high sensitivity is...
4190 1/2-Inch Free-Field Microphone
6.3 Hz to 20 kHz, 200V Polarization. Designed for high-precision free-field measurements where a 20 kHz microphone with high sensitivity is...
4191 1/2-Inch Free-Field Microphone
3.15 Hz to 40 kHz, 200V Polarization. Designed for high-precision, free-field measurements where a 40 kHz bandwidth is...
4192 1/2-Inch Pressure-Field Microphone
3.15 Hz to 20 kHz, 200V Polarization. Designed for high-precision coupler measurements or ANSI noise...
4193 1/2-inch Infrasound Microphone
0.07 Hz to 20 kHz, 200V Polarization. Designed for infrasound...
4206 Transmission Loss & Impedance Tube Kits
Complete acoustic material testing hardware kits for measuring the acoustical properties of noise control...
4226 Multifunction Acoustic Calibrator
Multifunction Acoustic Calibrator Type 4226 enables simulated free-field calibration of microphones, sound level meters and other related instruments. Type 4226 generates accurate and stable sound pressure with a frequency varying from 31.5 Hz to 16...
4228 Pistonphone
Pistonphone Type 4228 provides quick and accurate calibration of sound measuring equipment including sound level meters. Designed to be used in the field over a wide range of temperature, humidity and pressure while still maintaining high...
4229 Hydrophone Calibrator
Hydrophone Calibrator Type 4229 is a precision, high sound pressure source. It provides a quick and easy method to calibrate Brüel & Kjær hydrophones Types 8100, 8101, 8103 and...
4231 Sound Calibrator
A handy, portable sound source for calibration of sound level meters and other sound measurement equipment. The calibrator is very robust and stable, and conforms to EN/IEC 60942 Class LS and Class 1, and ANSI...
4297 Sound Intensity Calibrator
Sound Intensity Calibrator Type 4297 is used for on-site sound-pressure calibration and pressure-residual intensity-index...
4938 1/4-Inch Pressure-Field Microphone
4 Hz to 70 kHz, 200V Polarization. Designed for high-level and high-frequency...
4939 1/4-Inch Free Field Microphone
4 Hz to 100 kHz, 200V Polarization. Designed for high-level and high-frequency...
4940 1/2-Inch Free Field Microphone
2 Hz to 20 kHz, Prepolarized. Suitable for both outdoor and industrial environment measurements and for IEC 60651 Type 1 measurements and frequency analysis...
4941 1/4″ Extremely High Level Pressure-Field Microphone
4 Hz to 20 kHz, 200V Polarization. Designed for high-level measurements, such as gunshot, fireworks and...
4942 1/2-Inch Diffuse-Field Microphone
6 Hz to 16 kHz, Prepolarized. Designed for general, random-incidence measurements. Also suitable for noise measurements in accordance with ANSI...
4943 1/2-Inch Diffuse-Field Microphone
3.15 Hz to 10 kHz, 200V Polarization. Designed for general, random-incidence measurements. Also suitable for noise measurements in accordance with ANSI...
4944 1/4-Inch Pressure-Field Microphone
4 Hz to 70 kHz, Prepolarized. Designed for high-level and high-frequency...
4947 1/2-Inch Pressure-Field Microphone
8 Hz to 10 kHz, Prepolarized. Designed for coupler measurements in connection with telephone and hearing aid...
4950 1/2-Inch Free Field Microphone
6.5 Hz to 16 kHz, Prepolarized. Economy microphone designed for equipment intended for accurate and reliable sound measurements in accordance with IEC 61672 Class 1 and ANSI S 1.4 Type...
4953 1/2-Inch Pressure-Field Microphone
3 Hz to 10 kHz, Prepolarized. Designed for coupler measurements and in-cabin measurements. Suitable for measurements to ANSI...
4954 1/4″ Free-Field Microphone
4 Hz to 100 kHz, Prepolarized. Designed for high-level and high-frequency...
4964 1/2-Inch Infrasound Microphone
0.02 Hz to 20 kHz, Prepolarized. Designed for high-precision, acoustic measurements where an infrasound microphone with high sensitivity is...
4966 1/2-Inch Free Field Microphone
5 Hz to 20 kHz, Prepolarized. Designed for high‐precision, free‐field measurements where a microphone with high sensitivity is...
9737 Portable Impedance Meter
A user-friendly kit for quick, non-destructive acoustic material testing, such as measurements of noise insulation...
9740 Road Surface Absorption Measurement System
A lightweight, compact, robust and user-friendly system, designed for research and production quality control of road surfaces, with absorption, reflection and impedance...
Acoustical Arrays
Acoustical arrays rapidly produce detailed noise maps of kinds of noise sources. Our large selection ranges from small, two-microphone units up to arrays with several hundred microphones, for many different...
Type 2734 Power Amplifier For Building And Room Acoustics
A power amplifier designed to power sound sources in building and room acoustic field...
Type 2735 Measurement Power Amplifier
A compact, highperformance, 2 × 35 W power amplifier designed for electroacoustic and general-purpose...
Type 3207 Impact Sound Generator – Tapping Machine
An impact sound generator for measuring impact sound...
Type 4138-A-015 1/8-Inch Pressure-Field Microphone With Type 2670 Preamplifier, 6 HZ TO 140 KHZ, 200 V Polarization
Designed for very high-frequency measurements in confined...
Type 4138-B-006 1/8-Inch Pressure-Field Microphone With Type 2669 Preamplifier And Adaptor
Designed for very high-frequency measurements in confined...
Type 4138-C-006 1/8-Inch Pressure-Field Microphone With Type 2669 Preamplifier, 6 HZ TO 140 KHZ, 200 V Polarization
Designed for very high-frequency measurements in confined...
Type 4138-L-006 1/8-Inch Pressure-Field Microphone With Type 2669 Preamplifier, 6 HZ TO 140 KHZ, 200 V Polarization
Designed for very high-frequency measurements in confined...
Type 4182 Probe Microphone, 1 HZ TO 20 KHZ, 200 V Polarization
Designed for near-field measurements in small or awkward places or in harsh environments where a conventional microphone would be...
Type 4184 Weatherproof Omnidirectional Microphone
Designed for use in permanent, semi-permanent or portable noise-monitoring...
Type 4188-A-021 ½-Inch Free-Field Microphone With Type 2671 Preamplifier, 20 HZ TO 12.5 KHZ, Prepolarized
Designed for measurements in transport noise measurements, architectural acoustics and...
Type 4188-A-031 ½-Inch Free-Field Microphone With Type 2699 Preamplifier, 8 HZ TO 12.5 KHZ, Prepolarized
Designed for measurements in transport noise measurements, architectural acoustics and...
Type 4188-B-001 ½-Inch Free-Field Microphone With Type 2669-B Preamplifier, 8 HZ TO 12.5 KHZ, Prepolarized
Designed for measurements in transport noise measurements, architectural acoustics and...
Type 4188-C-001 ½-Inch Free-Field Microphone With Type 2669-C Preamplifier, 8 HZ TO 12.5 KHZ, Prepolarized
Designed for measurements in transport noise measurements, architectural acoustics and...
Type 4188-L-001 ½-Inch Free-Field Microphone With Type 2669-L Preamplifier, 8 HZ TO 12.5 KHZ, Prepolarized
Designed for measurements in transport noise measurements, architectural acoustics and...
Type 4189-A-021 ½-Inch Free-Field Microphone With Type 2671 Preamplifier, 20 HZ TO 20 KHZ, Prepolarized
Designed for high-precision, free-field measurements where a microphone with high sensitivity is...
Type 4189-A-031 ½-Inch Free-Field Microphone With Type 2699 Preamplifier, 6 HZ TO 20 KHZ, Prepolarized
Designed for high-precision, free-field measurements where a microphone with high sensitivity is...
Type 4189-B-001 ½-Inch Free-Field Microphone With Type 2669-B Preamplifier, 6 HZ TO 20 KHZ, Prepolarized
Designed for high-precision, free-field measurements where a microphone with high sensitivity is...
Type 4189-C-001 ½-Inch Free-Field Microphone With Type 2669-C Preamplifier, 6 HZ TO 20 KHZ, Prepolarized
Designed for high-precision, free-field measurements where a microphone with high sensitivity is...
Type 4189-H-041 ½-Inch Free-Field Microphone With Type 1706 Preamplifier, 6.3 HZ TO 20 KHZ, Prepolarized
Designed for high-precision, free-field measurements where a microphone with high sensitivity is...
Type 4189-L-001 ½-Inch Free-Field Microphone With Type 2669-L Preamplifier, 6 HZ TO 20 KHZ, Prepolarized
Designed for high-precision, free-field measurements where a microphone with high sensitivity is...
Type 4189-W-003 ½-Inch Free-Field Microphone With Type 2671-W-001 Preamplifier, 6 HZ TO 20 KHZ, Prepolarized
Designed for high-precision, free-field measurements where a microphone with high sensitivity is...
Type 4190-B-001 ½-INCH Free-Field Microphone With Type 2669-B Preamplifier, 3 HZ TO 20 KHZ, 200 V Polarization
Designed for high-precision, free-field measurements where a microphone with high sensitivity is...
Type 4190-C-001 ½-Inch Free-Field Microphone With Type 2669-C Preamplifier, 3 HZ TO 20 KHZ, 200 V Polarization
Designed for high-precision, free-field measurements where a microphone with high sensitivity is...
Type 4190-L-001 ½-Inch Free-Field Microphone With Type 2669-L Preamplifier, 3 HZ TO 20 KHZ, 200 V Polarization
Designed for high-precision, free-field measurements where a microphone with high sensitivity is...
Type 4191-B-001 ½-Inch Free-Field Microphone With Type 2669-B Preamplifier, 3 HZ TO 40 KHZ, 200 V Polarization
Designed for all high-precision electro-acoustic measurements and general acoustic measurements where a robust and stable free-field microphone is...
Type 4191-C-001 ½-Inch Free-Field Microphone With Type 2669-C Preamplifier, 3 HZ TO 40 KHZ, 200 V Polarization
Designed for all high-precision electro-acoustic measurements and general acoustic measurements where a robust and stable free-field microphone is...
Type 4191-L-001 ½-Inch Free-Field Microphone With Type 2669-L Preamplifier, 3 HZ TO 40 KHZ, 200 V Polarization
Designed for all high-precision electro-acoustic measurements and general acoustic measurements where a robust and stable free-field microphone is...
Type 4192-B-001 ½-Inch Pressure-Field Microphone With Type 2669-B Preamplifier, 3 HZ TO 20 KHZ, 200 V Polarization
Designed for high-precision coupler measurements or ANSI noise...
Type 4192-C-001 ½-Inch Pressure-Field Microphone With Type 2669-C Preamplifier, 3 HZ TO 20 KHZ, 200 V Polarization
Designed for high-precision coupler measurements or ANSI noise...
Type 4192-L-001 ½-Inch Pressure-Field Microphone With Type 2669-L Preamplifier, 3 HZ TO 20 KHZ, 200 V Polarization
Designed for high-precision coupler measurements or ANSI noise...
Type 4198 Outdoor Microphone Unit
Designed for unattended, semi-permanent outdoor installations; noise control, complaint investigation and...
Type 4204 Reference Sound Source
A range of sound sources optimized for measuring room and building...
Type 4292-L High-Power Omnidirectional Loudspeaker – Omnipower Sound Source
A dodecahedral loudspeaker for sound insulation and room acoustics...
Type 4295 Lightweight Omnidirectional Loudspeaker – Omnisource Loudspeaker
A loudspeaker for the measurement of room acoustics including reverberation time, sound distribution and spatial...
TYPE 4295 Omnisource With 4299 Volume Velocity Adaptor
OmniSource Sound Source Type 4295 covers the most relevant frequency range for vehicle noise applications, that is, from 50Hz to around...
Type 4720 Speech Intelligibility Measurement Software – Echo Speech Source
A sound source delivering a calibrated signal to measure a range of speech intelligibility...
Type 4938-A-011 ¼-Inch Pressure-Field Microphone With Type 2670 Preamplifier, 4 HZ TO 70 KHZ, 200 V Polarization
Designed for high-level and high-frequency...
Type 4938-B-002 ¼-Inch Pressure-Field Microphone With Type 2669-B Preamplifier, 4 HZ TO 70 KHZ, 200 V Polarization
Designed for high-level and high-frequency...
Type 4938-C-002 ¼-Inch Pressure-Field Microphone With Type 2669-C Preamplifier, 4 HZ TO 70 KHZ, 200 V Polarization
Designed for high-level and high-frequency...
Type 4938-L-002 ¼-Inch Pressure-Field Microphone With Type 2669-L Preamplifier, 4 HZ TO 70 KHZ, 200 V Polarization
Designed for high-level and high-frequency...
Type 4939-A-011 ¼-Inch Free-Field Microphone With Type 2670 Preamplifier, 4 HZ TO 100 KHZ, 200 V Polarization
Designed for high-level and high-frequency...
Type 4939-B-002 ¼-Inch Free-Field Microphone With Type 2669-B Preamplifier, 4 HZ TO 100 KHZ, 200 V Polarization
Designed for high-level and high-frequency...
Type 4939-C-002 ¼-Inch Free-Field Microphone With Type 2669-C Preamplifier, 4 HZ TO 100 KHZ, 200 V Polarization
Designed for high-level and high-frequency...
Type 4939-L-002 ¼-Inch Free-Field Microphone With Type 2669-L Preamplifier, 4 HZ TO 100 KHZ, 200 V Polarization
Designed for high-level and high-frequency...
Type 4941-A-011 ¼-Inch Pressure-Field Microphone With Type 2670 Preamplifier, 4 HZ TO 20 KHZ, 200 V Polarization
Designed for very high-level measurement, such as gunshot, fireworks and...