Sound level meters
Sound level meters measure sound pressure level (SPL) expressed in decibels (dB), using standardised A, C or Z weightings. Compliant with IEC 61672-1 (Class 1 and 2) standards, they are used to assess noise in professional, environmental or industrial environments. In metrology, they are used to check regulatory compliance with the European directive 2003/10/EC on noise exposure. In R&D, they are used to characterise acoustic products, validate audio systems or control noise pollution. Their typical measurement range extends from 20 dB(A) to 140 dB(A), with an accuracy of ± 1 dB and a frequency response of 10 Hz to 20 kHz. Recent models incorporate a data logger, time weighting (Fast/Slow) and a USB or Bluetooth interface for report generation. Some include a 1/3 octave spectrum analyser for frequency analysis of noise. Acoustic calibration is traceable to ISO 17025.
The sound level meter is a reference instrument for measuring, analysing and controlling sound levels with precision and conformity.
FUSION-SLM
01DB
Class 1 sound level meter with colour touch screen and USB connectivity.
8903B
KEYSIGHT / AGILENT / HP
Audio signal analyser with bandwidth from 20Hz to 100KHz.
8903B/010-011
KEYSIGHT / AGILENT / HP
Audio signal analyser with bandwidth from 20Hz to 100KHz.
U8903A
KEYSIGHT / AGILENT / HP
2-channel audio analyser, DC/10 Hz to 100 KHz, USB port and LXI class C.
3708A
KEYSIGHT / AGILENT / HP
Measuring device for assessing the performance of radio and satellite systems.
HDMI2EARC
AUDIO PRECISION
HDMI module for APx B audio analysers, measurement of HDMI audio quality.
2255
BRUEL AND KJAER
Class 1 sound level meter, measurement range 22.7 - 140.6 dB(A), automatic transfer of measurements.
2260
BRUEL AND KJAER
Brüel & Kjær 2260 sound level meter, class 1, dynamic range 120 dB, 6 Hz-20 KHz, with Evaluator software.
OPTION-HDMI
AUDIO PRECISION
Audio analyser for HDMI, compatible with Audio Precision's APX500 series.
APX525-B
AUDIO PRECISION
2-channel audio analyser with simplified user interface and high performance.
APX515-B
AUDIO PRECISION
High-performance audio analyser optimised for production testing.
BLUETOOTH-AUDIO-ANALYSER
AUDIO PRECISION
Bluetooth option for Audio Precision's APX500 audio analysers.
OPTION-PDM
AUDIO PRECISION
PDM option for APX500 audio analyser, offering advanced performance.
DSIO
AUDIO PRECISION
Integration into the APX500 series of audio analysers with advanced options.
AUDIO-PRECISION-PESQ-POLQA
AUDIO PRECISION
PESQ and POLQA options for analysing voice signal degradation.
OPTION-RUB-AND-BUZZ
AUDIO PRECISION
Rapid detection of loudspeaker faults and air leaks.
APX555-B
AUDIO PRECISION
High-performance audio analyser with -120 dB THD+N residual noise.
APX585-B
AUDIO PRECISION
8-channel audio analyser with simplified interface and high performance.
AUX
AUDIO PRECISION
Passive filters to reduce out-of-band signals in audio measurements.
OPTIONAL FILTERS
AUDIO PRECISION
Versatile audio filters for analysers, including low-pass, high-pass and customisable filters.
2236
BRUEL AND KJAER
Class 1 precision sound level meter, LEQ.Peak measurement, +20/+140dB RMS.
2236D
BRUEL AND KJAER
Class 1 precision sound level meter with LEQ.Peak measurement and built-in memory.
SOLOMASTER
METRAVIB
Precision integrating sound level meter, class 1, dynamic range 30 to 137 dBA.
OPTION-PDM-16-CHANNEL
AUDIO PRECISION
16-channel PDM module for APx audio analysers, ideal for MEMS testing.
concrete questions about Sound Level Meters
01
What is a sound level meter used for?A sound level meter measures the sound pressure level in an environment. It can be used to assess noise exposure, check compliance with regulatory thresholds, identify problematic noise sources and document nuisance or working conditions.
02
What's the difference between a Class 1 and Class 2 sound level meter?Class 1 models offer greater accuracy and a wider bandwidth, making them suitable for regulatory measurements or acoustic surveys. Class 2 sound level meters are designed for general inspections, rapid diagnostics and non-certification applications.
03
What parameters can a sound level meter measure?Depending on the model: SPL level, A/C/Z weighting, Lmin/Lmax/Lpeak values, integration over time (Leq), and sometimes frequency analysis. Some recorders allow long-term monitoring to track changes in noise over several hours or days.
04
In which areas is a sound level meter most commonly used?It is used in workplace safety, in industry to monitor noisy machinery, in construction for acoustic audits, in the environment to measure noise pollution, and in communities to check compliance with local regulations.
05
What technical criteria should I check before making my choice?Precision class, measurement range, available weightings, data logging, battery life, type of microphone and resistance to external conditions. For critical measurements, the stability of the microphone and its calibration are crucial.
