PLACID Instruments
PLACID Instruments is a leading manufacturer of precision acoustic measurement equipment, specializing in impedance tubes for sound absorption and transmission loss testing according to ISO 10534-2 and ASTM E1050 standards. Their product range includes multi-channel data acquisition systems, professional microphones, preamplifiers, sound calibrators, and hemisphere microphone arrays for sound power measurements per ISO 3744/3745. Based in Europe, PLACID serves research institutions, universities, automotive manufacturers, and material testing laboratories worldwide.
Distributors / Where to Buy
For regional inquiries in Southeast Asia and Asia Pacific, contact Acousticals.net.
Products by Category
PLACID-SL-02
PLACID SL-02 Class 2 Sound Level Meter
The PLACID SL-02 is a handheld sound level meter compliant with IEC 61672-1:2002 Class 2. It measures 30 to 130 dB over 20 Hz to 8 kHz with A and C frequency weighting and Fast and Slow time weighting, reporting SPL, Leq, Lmax and Lmin. An integrated datalogger stores 64,000 records, and a PC interface with software plus AC and DC signal outputs allow results to be exported or fed to an external analyser. Class 2 is the appropriate accuracy class for general noise surveys, workplace screening and preliminary assessments; where a result must support compliance or may be challenged, a Class 1 instrument should be used instead. Placid Asia is the authorized distributor for Thailand and ASEAN.
PLACID-CA-02
PLACID CA-02 Sound Calibrator
The PLACID CA-02 is a handheld acoustic calibrator for sound level meters and measurement microphones. Like the CA-01 it applies a known sound pressure level to the microphone so the whole measurement chain can be verified on site, before and after a survey, as ISO 9612 and environmental noise procedures require. The CA-02 is the alternative coupler and level configuration in the PLACID calibrator range; which of the two suits a given instrument depends on the microphone diameter and the level you need to check against. Tell us the meter and microphone you are calibrating and we will confirm the correct model. Placid Asia is the authorized distributor for Thailand and ASEAN.
PLACID-PMNU21
PLACID PMNU21 Class 1 USB Microphone
The PLACID PMNU21 is a Class 1 USB measurement microphone to IEC 61672. It covers 20 Hz to 20 kHz with a nominal sensitivity of 50 mV/Pa, a 26 to 126 dB measuring range and 48 kHz 16-bit digitisation inside the microphone. Because it needs no separate preamplifier, power supply or acquisition card, it turns any laptop into a Class 1 measurement chain, which suits field surveys, teaching laboratories, production line checks and long unattended recordings. Placid Asia is the authorized distributor for Thailand and ASEAN.
PLACID-PNP21
PLACID PNP21 1/2in Microphone Preamplifier
The PLACID PNP21 is a 1/2 inch microphone preamplifier with a frequency response of 5 Hz to 100 kHz and self-noise below 2.0 microvolts. It is available with a BNC or TNC connector and accepts standard 1/2 inch measurement microphones. The very low self-noise preserves the noise floor of a Class 1 capsule, so the combination can be used for low-level environmental and building acoustics measurement as well as high-frequency and ultrasonic work. Placid Asia is the authorized distributor for Thailand and ASEAN.
CA-01
PLACID CA-01 Sound Calibrator
The PLACID CA-01 is a handheld acoustic calibrator for field verification of sound level meters and measurement microphones. A calibrator applies a known sound pressure level to the microphone so the measurement chain can be checked immediately before and after a survey, which is what ISO 9612 and most environmental noise procedures require: a measurement whose calibration was not verified on site is difficult to defend. The CA-01 is used with PLACID measurement microphones and with third-party sound level meters of matching diameter. Full specifications and the acoustic coupler options are provided with the quotation. Placid Asia is the authorized distributor for Thailand and ASEAN.
PQ-ANALYST
PLACID PQ Analyst Sound and Vibration Tool
PLACID PQ Analyst is acquisition and analysis software for sound and vibration measurement. It provides real-time FFT, spectrogram display and octave analysis, together with a sound level meter module offering A, C and Linear frequency weighting to IEC. Results export to CSV for reporting and further processing. PQ Analyst drives the PLACID PQ1601 and PQ401 acquisition hardware, turning a laptop and a measurement microphone or accelerometer into a complete analysis chain. Placid Asia is the authorized distributor for Thailand and ASEAN.
PLACID-ANGEL
PLACID Angel Noise Dosimeter, IEC 61252
The PLACID Angel is a personal noise dosimeter to IEC 61252 and ANSI S1.25, made in France. It measures 20 Hz to 16 kHz over a 50 to 120 dB range and reports LEX,8h and percentage dose, the quantities required for occupational noise exposure assessment to ISO 9612 and to Thai and ASEAN workplace regulations. Battery life is 30 hours, so a full shift or a multi-day survey runs without recharging. Shoulder mounted and cable free, it does not interfere with the work being measured. Placid Asia is the authorized distributor for Thailand and ASEAN.
HEMISPHERE
PLACID Hemisphere Array, ISO 3744 / 3745
The PLACID HM01 and HM02 are hemisphere microphone arrays for sound power determination to ISO 3744 and ISO 3745. They cover 3.15 Hz to 20 kHz over a 17 to 139 dB range with 50 mV/Pa microphones, and are supplied with 10 or 20 microphone positions on a hemisphere of 1000 to 2000 mm. Fixing the microphone positions mechanically removes the largest source of error in hemispherical sound power measurement and makes results repeatable between operators, which matters for product declaration and type testing. Placid Asia is the authorized distributor for Thailand and ASEAN.
PQ441-C
PLACID PQ441-C 4-Channel Signal Conditioner
The PLACID PQ441-C is a four-channel signal conditioner and data acquisition unit for sound and vibration measurement. A signal conditioner supplies sensor power, sets gain and filters the signal before digitisation, which is what allows microphones, accelerometers and plain voltage sources to be mixed on one measurement without each needing its own front end. Four channels is the practical minimum for intensity probes, impedance tube work to ISO 10534-2 and small modal setups. The PQ441-C runs with PLACID PQ Analyst software for real-time FFT, spectrogram and octave analysis with CSV export. Full specifications are provided with the quotation. Placid Asia is the authorized distributor for Thailand and ASEAN.
PNV12
PLACID PNV12 Microphone Preamplifier
The PLACID PNV12 is a microphone preamplifier for PLACID condenser measurement microphones. A measurement capsule has a very high output impedance and cannot drive a cable on its own; the preamplifier converts that to a low-impedance signal the analyser can accept, which is what allows the microphone to sit at the measurement position with the instrument some distance away. The PNV12 accepts standard PLACID capsules and is used in environmental noise, building acoustics and laboratory measurement chains. Full specifications, connector options and cable lengths are provided with the quotation. Placid Asia is the authorized distributor for Thailand and ASEAN.
PQ401-AB
PLACID PQ401-A/B Four-Channel Data Acquisition Device | 24-bit DAQ with SDK for MATLAB, C++, C#, Python
The PQ401-A/B is a four-channel data collection device with a high sampling rate and compact size. It supports both IEPE and voltage input methods, adopts the mature TCP/IP protocol, and comes with a built-in SD card. Paired with PQ Analyst software for efficient data acquisition and analysis. Open SDK for C, C#, MATLAB, Python — ideal for university research labs, PhD thesis work, and R&D departments. Two variants: PQ401-A (128kHz) and PQ401-B (196kHz). 24-bit resolution, 114 dB dynamic range, 520g portable design.
PMP25
PLACID PMP25 Random-Incidence Microphone
The PLACID PMP25 is a 1/2 inch prepolarized random-incidence measurement microphone with a nominal sensitivity of 50 mV/Pa. Its inherent noise is below 16 dB(A) and total harmonic distortion stays under 3% across the working range. Random-incidence response is the correct choice for a diffuse sound field, so the PMP25 suits reverberation room work, building acoustics to ISO 16283 and indoor measurement where sound arrives from all directions. Prepolarized operation removes the need for a 200 V supply. Placid Asia is the authorized distributor for Thailand and ASEAN.
PLACID-PNP22
PLACID PNP22 1/2in Microphone Preamplifier
The PLACID PNP22 is a 1/2 inch microphone preamplifier with a frequency response of 5 Hz to 100 kHz and self-noise below 2.0 microvolts. It accepts standard 1/2 inch measurement microphones and preserves the noise floor of a Class 1 capsule across the full audio band and well into the ultrasonic range. Typical use is environmental noise monitoring, building acoustics, sound power measurement and laboratory work where a long cable run is needed between microphone and analyser. Placid Asia is the authorized distributor for Thailand and ASEAN.
PLACID-PMP20
PLACID PMP20 Class 1 Microphone, 20 Hz-40 kHz
The PLACID PMP20 is a 1/2 inch Class 1 free-field measurement microphone to IEC 61094-4, individually calibrated. It covers 20 Hz to 40 kHz with a dynamic range of 25 to 155 dB(A) and a nominal sensitivity of 12 mV/Pa. The wide upper frequency limit and high maximum level suit ultrasonic work, machinery and product noise testing and sound power measurement, while the low noise floor allows quiet environments to be measured without correction. Supplied with an individual calibration chart. Placid Asia is the authorized distributor for Thailand and ASEAN.
PLACID-PNP41
PLACID PNP41 1/4in Microphone Preamplifier
The PLACID PNP41 is a 1/4 inch microphone preamplifier with a frequency response of 5 Hz to 100 kHz and self-noise below 2.5 microvolts. It is matched to 1/4 inch capsules such as the PMP41-A, keeping the assembly physically small so that it disturbs the sound field as little as possible. That suits near-field and in-duct measurement, microphone arrays, ultrasonic work and high-level testing where a 1/2 inch assembly would be too large. Placid Asia is the authorized distributor for Thailand and ASEAN.
PNV21
PLACID PNV21 1/2in Low-Noise Preamplifier
The PLACID PNV21 is a 1/2 inch microphone preamplifier built for low self-noise and a wide dynamic range, so that neither the quietest nor the loudest part of a measurement is limited by the preamplifier rather than by the microphone. It accepts standard 1/2 inch measurement capsules and is used where one chain has to cover both very low background levels and high peaks, such as environmental monitoring near intermittent sources, and vehicle and machinery testing. Placid Asia is the authorized distributor for Thailand and ASEAN.
MEASUREMENT-MICROPHONE-SETS
PLACID Measurement Microphone Sets
PLACID measurement microphone sets pair a condenser measurement capsule with its matched preamplifier, supplied as one calibrated assembly rather than as separate parts. PLACID builds Class 1 and Class 2 condenser measurement microphones in 1/2-inch and 1/4-inch sizes, so a set can be specified free-field or random-incidence, prepolarized or externally polarized, to suit environmental noise, building acoustics, sound power or ultrasonic work. Buying the capsule and preamplifier as a set means the pair is calibrated together and the sensitivity on the certificate is the sensitivity of what you actually connect to the analyser. Tell us the application and the analyser input and we will specify the set. Placid Asia is the authorized distributor for Thailand and ASEAN.
PLACID-POFM-01
PLACID POFM-01 Fibre Optic Microphone
The PLACID POFM-01 is a fibre optic microphone system with total immunity to electromagnetic and radio frequency interference. Sensitivity is 200 mV/Pa over 3.15 Hz to 6 kHz with 114 dB of dynamic range. The sensor head is passive and entirely non-metallic and carries no electrical energy at the measurement point, which makes it intrinsically safe by design for MRI scanner rooms, ATEX and IECEx hazardous areas, high-voltage substations and nuclear facilities. The optical fibre transmits the signal up to 2 km without amplification. Placid Asia is the authorized distributor for Thailand and ASEAN.
PLV-3010
PLACID PLV-3010-02Y Triaxial Accelerometer
The PLACID PLV-3010-02Y is a triaxial IEPE accelerometer measuring 0.5 Hz to 11 kHz over a range of plus or minus 500 g with a nominal sensitivity of 10 mV/g. Three axes in a single housing capture the complete vibration vector at one point, which is what modal analysis, machinery condition monitoring, shock and drop testing, and transport and packaging qualification require. The 0.5 Hz lower corner also covers structural and human exposure vibration. Placid Asia is the authorized distributor for Thailand and ASEAN.
PQ1601
PLACID PQ1601 16-Channel USB DAQ
The PLACID PQ1601 is a 16-channel BNC data acquisition unit connected over USB. Selectable gain of x1, x10 and x100 and a 4 mA IEPE supply on every channel allow microphones, accelerometers and plain voltage signals to be mixed in one measurement. Sampling runs from 1 to 100 kHz with 112 dB of dynamic range. It is the acquisition front end for the PLACID PQ Analyst software and suits multi-point sound and vibration measurement, sound power arrays and laboratory work. Placid Asia is the authorized distributor for Thailand and ASEAN.
IMPEDANCE-TUBE
Impedance Tube (Kundt's Tube) ISO 10534-2
Impedance tube systems, also called Kundt's tubes, measure the normal-incidence sound absorption coefficient and the transmission loss of acoustic materials to ISO 10534-2 and ASTM E1050. Placid Asia supplies the PLACID Instruments tube set: PI8810, 100 mm, 50-1600 Hz; PI8803, 30 mm, 800-6400 Hz; and PI88016, 16 mm, 2500-10000 Hz, each with 1/4-inch measurement microphones, loudspeaker, signal generator, amplifier and a 4-channel DAQ. Laboratories that also need the four-pole transfer matrix method to ASTM E2611 can use the Norsonic Nor1527. Authorized distributor for Thailand and ASEAN.
PLV-356A15
PLACID PLV-356A15 Accelerometer
The PLACID PLV-356A15 is an IEPE accelerometer for structural and machinery vibration measurement. It connects directly to any IEPE or ICP-compatible input, so it works with the PLACID PQ1601 and PQ401 acquisition hardware and with third-party analysers without a separate charge amplifier. Typical use is modal testing, machinery condition monitoring, structural response measurement and transport and packaging qualification. Mounting studs, magnets, adhesive pads and cables are available as accessories, and the sensitivity that matters is the one on the individual calibration certificate supplied with the unit. Full specifications are provided with the quotation. Placid Asia is the authorized distributor for Thailand and ASEAN.
PMP21
PLACID PMP21 Class 1 Microphone, 50 mV/Pa
The PLACID PMP21 is a 1/2 inch Class 1 free-field measurement microphone to IEC 61094-4, individually calibrated. It covers 20 Hz to 20 kHz with a dynamic range of 16 to 146 dB(A) and a nominal sensitivity of 50 mV/Pa. The high sensitivity and 16 dB(A) noise floor make it the standard choice for environmental noise monitoring, building acoustics and occupational noise assessment, where levels are low and the full audio band is required. Supplied with an individual calibration chart. Placid Asia is the authorized distributor for Thailand and ASEAN.
PMP41
PLACID PMP41-A Class 1 Microphone, 7 mm
The PLACID PMP41-A is a 7 mm Class 1 WS3F measurement microphone to IEC 61094. It covers 20 Hz to 70 kHz with a dynamic range of 34 to 164 dB(A) and a nominal sensitivity of 4 mV/Pa. The small diaphragm disturbs the sound field very little and reaches a high upper frequency limit, which suits ultrasonic measurement, near-field and in-duct work, high-level engine and aerospace testing, and microphone arrays where physical size matters. Placid Asia is the authorized distributor for Thailand and ASEAN.