Cesva SC250 Class 1 Sound Level Meter

Sound level meter and spectrum analyser

Integrating Sound level meter class 1 with touch screen expandable to spectrum analyzer for octave and third octave bands Integrating Sound level meter class 1 with audio recording expandable to spectrum analyzer for third octave bands

Capacitive colour touch screen 

IBuilt-in memory with CSV Files 

Backerase of the last 10 seconds

USB-C connectivity, Bluetooth® integrated and WIFI communication 

Ready for Apps for mobile or Tablet (Android) 

Expandable to spectrum analyzer for octave and third octave bands 

Main Features

Colour Touch Screen

The SC250 has a colour touch screen to manage the complete equipment. Its capacitive screen is 3.5” size, it helps to any action will be very fast and intuitive. The screen of the SC250 shows a clear and sharp view even in broad daylight; it also lights up automatically when the sound level meter is turned on.

Single Measuring Range

The SC250 has a single measurement range, from 16.5 dBA to 140.1 dBC peak. This fact saves time since it is not necessary to configure the equipment previously. It also avoids having to repeat measurements due to measuring out range.

Sound level meter expandable to 1/3 Octave

The SC250 is expandable through FR250* module, this activates the spectral analysis by

octave band (1/1) and third octave band (1/3). Performing frequency analysis increases the applications that can be evaluated with the SC250, such as tonal components, low frequency or acoustic absorption of materials.

Wireless sound level meter: Bluetooth / WiFi

The SC250 has internal Bluetooth® communication to connect it to a device (Tablet, mobile,…)

and thus to be able to operate the SC250 remotely using the SC250 Link+ App from CESVA. The WIFI communication of the SC250 allows to send the memories to the CESVACloud+ server this means to have the memories immediately from anywhere. It also allows to update the firmware version and activate the modules purchased, only by connecting the sound level meter to internet.
(+) process

Built-in memory with CSV Files

The SC250 has internal memory to store the recordings made and final results. In addition

to the history of date and time changes, sensitivity adjustment and firmware version. These data are saved in csv files and can be opened from different operating systems as Microsoft Windows®, Mac OS® or LINUX®. The SC250 csv files are compatible with the CESVA Lab application.

NC/NR curves and backerase

The SC250 evaluates the spectrum according the NC (Noise Criterion) and NR (Noise Reduction) curves families, this feature allows the equipment to carry out the evaluation of background noise in rooms. With the BACKERASE option, allows the SC250 to eliminate unwanted audible events corresponding to the last 10 seconds before a pause.


FR250 - 1/3 and 1/1 OCTAVE FILTERS

What does it measure?

8 Hz to 16 kHz octave bands filters analysis and 6.3 Hz to 20 kHz 1/3-octave band filters analysis, plus overall functions.


  • Assessment of environmental noise (Corrections for the presence of tonal and impulsive components and low frequency content)
  • Hearing protection selection (by octaves) 
  • Noise evaluation of air conditioning equipment
  • Measurement of the sound level of technical equipment in buildings (ISO 16032) 
  • Industrial noise analysis of machinery (development, quality control and maintenance)


Table of standards

IEC 61672-1:2013
Class 1 sound level meter
EN 61672-1:2013
Class 1 sound level meter
IEC 61260-1:2014
Class 1 filters
EN 61260-1:2014
Class 1 filters
ANSI S1.4:2014
/Part 1 class 1 sound level meter
ANSI S1.43-1997(R2007)
Class 1 Integrating sound level
ANSI S1.11-2004(R2009)
Class 1 filters
DIN 45657:2014
regarding the Taktmaximalpegel function
IEC 61010-1:2010
/A1:2016/COR1:2019 II pollution degree
Complies with 2014/30/UE and EMC 2014/35/UE regulations



The SC250 sound level meter measures a lot of functions for very long periods of time and also records audio files automatically. The best way to approach the analysis of all these functions together with the qualitative information provided by the audio files is to use the CESVA Lab software application.

Download and configure

CESVA Lab is cost free and gives you a simple way  to download all the information from the SC250 by simply removing the microSD card and post-process it. It also allows you configuring the SC250 from the PC.

View and Listen

Moreover, it provides an intuitive and user-friendly interface which allows numerically and graphically display of all the measurement information on the screen in several synchronized panels (spectrum and time history graphs and 3D spectrograms) and listen to the audio files for each sound event.  

Export and Report

To navigate through the information, CESVA Lab has an audio and mark browser and a very powerful zoom  and pan tool for finding the desired section and then automatically generate a PDF report.  

Edit and re-calculate

If what you want is to recalculate a section, simply select it, add it to a layer and simply calculate. Different layers, containing  several sections,  can be calculated simultaneously. Each layer is calculated and saved in a separate file.  

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