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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

  • Capacitive colour touch screen
  • Built-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.


Numerically displays three functions (F1, F2, and F3). This screen allows modifying the function to be displayed regardless of the status (play, rec, pause or stop).


It shows the temporal evolution and the value of the functions (F1, F2, and F3), graphically represents the last 60 measured values.


Pass / Not pass

It graphically displays the values ​​of the F1 function together with the threshold level. And represents in red the values ​​that exceed the threshold level. The threshold level can be modified at any time.

Optional Modules

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)

Standards and certificates

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

Type-approval Certificates

14/09/2021: Type examination

Complete sets


Set consisting of: SC250 sound level meter, CB011 Sound level calibrator and ML013 transporting briefcase


Set consisting of: SC250 sound level meter, CB011 Sound level calibrator, TR40 tripod and ML043 transporting briefcase


Set consisting of: SC250 sound level meter, CB011 Sound level calibrator, TR40 tripod and ML063 transporting briefcase

Optional accessories


Outdoor kit


3 m extension rod for microphones. Adaptor for microphone supplied.


Tripod for sound level meter, dosimeter and microphone. Maximum height 1.1 meters.


Tripod for sound level meter, dosimeter and microphone. Maximum height 1.55 meters.


Tripod support for the microphone


Extension cable 3m


Extension cable 10 m


Extension cable 30 m


Mains power feeder with USB


Converter for battery 12 V to 5 V (microUSB)


Carrying case (39 x 32 x 12 cm) for sound level meter and acoustic calibrator


Carrying case (48 x 37 x 16 cm) for sound level meter, acoustic calibrator and Tripod


Carrying case special  weather (51 x 38 x 15 cm) for sound level meter, acoustic calibrator and Tripod

CESVA SC250 Sound Level Meter