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Noise measuring sensor for Smart Solutions

The TA120 sensor combines the precision of a Class 1 sound level meter, maximum protection of  an outdoor kit and full connectivity with  CESVA NoisePlatform and open source platforms.

  • Continuous measurement (24h / 7d) with class 1 accuracy according to IEC 61672-1
  • Measurement of LAeq and a selectable extra function (LCeq, LAFmax or LASmax)
  • Protection against external agents with an outdoor kit: wind, rain, birds and insects
  •  IP65 protection against dust and water
  • Compatible with NoisePlatform Platform  and various open source platform for sensors connectivity
  • Light weighted, small sized and easy to integrate into the urban furniture 
  • Powered by mains, POE (Power over Ethernet), 12 VDC (Solar panels, external batteries)
  • Communication by Ethernet (RJ45), loop 4-20mA*, Wi-Fi*, GPRS/2G* modem  (*Optional) 
  •  Smart cities sensing, noise surveillance networks (permanent monitoring), protection of quiet areas, displaying noise levels in real time, etc.

Main Features

Precision and reliability

The TA120 sensor measures, according to IEC 61672-1 class 1, the equivalent continuous sound level with A frequency weighting and a function to choose between the equivalent continuous level with frequency weighting C, maximum Fast level with frequency weighting A or maximum Slow level with frequency weighting A, in a single range of 35-120 dBA. The integration time is configurable between 1s* and 60min.

*Integration times shorter than 10s require high-speed networks.

It also allows to obtain the value of each second of one of the above functions. The measurement is continuous 24 hours / 7 days a week. The TA120 can be checked quickly with an acoustic calibrator (IEC 60942).

Fully integrated into the urban landscape

The TA120 is very easy to install on street lights, marquees, billboards, shelters, kiosks and advertising posts and requires minimum annual maintenance.

The TA120 is powered through the mains, POE, 12 VDC voltage or through the urban lightning network with battery backup. The BA120 optional battery guarantees the sufficient duration and charging time to complete annual cycles.

Maximum protection

The outdoor kit of the TA120 sensor allows respecting Class 1 measurement precision, to achieve a high protection against external agents such as wind, rain, birds and insects; reaching IP65 according to IEC 60529.

The TA120 ensures proper acoustic performance at temperatures between -10 and +50° C.
The materials used in the manufacture of TA120 ensure a long life cycle of the sensor.

Connectivity with IoT platforms

The TA120 sensor is fully integrated into different platform connectivity sensors as NoisePlatform,  Sentilo, Telefonica, SmartyPlanet, etc. The communication can be performed through:

  • Ethernet (LAN)
  • current loop 4-20 mA*
  • Wi-Fi module* 
  • modem GPRS/2G 

The TA120 uses HTTP and HTTPS (secure connection) with UL2.0 (UltraLight 2.0) format, JSON (Java Script Object Notation) format, or Other (consult).

CESVA NoisePlatform

NoisePlatform is an on-line platform that displays and dynamically analyses, in real time, the noise measured by a mixed network of sensors and terminals that can monitor the entire area affected by noise-generating activities. 


NoisePlatform heralds a step forward in noise monitoring. Hitherto, monitoring projects were usually implemented with a single terminal that was transported to different sites due to its high cost. 

This meant that the information available was not simultaneous and the terminal installation costs were higher. NoisePlatform works with a mixed network of sensors and terminals that does away with all these obstacles to deliver continuous and multi-point noise monitoring,
thanks mainly to the low cost of its sensors and minimum maintenance cost of the platform.

In addition, NoisePlatform is a precise, reliable and secure system (Class 1 measuring precision, reliability in data transmission, secure server certified with 256-bit SSL encryption) and 100% online (access, display and analysis).

Supported Platforms


Sentilo is an open source sensor and actuator platform designed to fit in the Smart City architecture of any city who looks for openness and easy interoperability. It’s built, used, and supported by an active and diverse community of cities and companies that believe that using open standards and free software is the first smart decision a Smart City should take.


A Smart City is an environment that involves many technologies and multiple agents: from sensors scattered throughout the whole city (to collect any kind of data: traffic, water, energy) to the mobile devices of the citizens; from mayors to traders. All this data must be managed by a platform that centralises and processes it.


The FIWARE platform provides a rather simple yet powerful set of APIs (Application Programming Interfaces) that ease the development of Smart Applications in multiple vertical sectors. The specifications of these APIs are public and royalty-free. Besides, an open source reference implementation of each of the FIWARE components is publicly available so that multiple FIWARE providers can emerge faster in the market with a low-cost proposition.

Standards and certificates

Table of standards

IEC 60529:2013
IP65 protection degree
Complies with 2014/30/UE and EMC 2014/35/UE regulations

CESVA Sensor Manager

CESVA Sensor Manager is the communications software for CESVA noise sensors. To communicate with the noise sensor, install the CESVA USB Drivers and the CESVA Sensor Manager.

Compatible with Windows 7, Windows 8, Windows 8.1 and Windows 10.

Sensor information and adjustment

When performing the communication, CESVA Sensor Manager displays the information for the TA120 sensor and allows check and adjust the sensitivity of the sensor, if necessary.  

Advanced mode: Parameters Settings

CESVA Sensor Manager allows set the communication parameters depending on the different communication options: Server, Ethernet port, modem GPRS/2G, Wi-Fi or current loop.

Communication Options


Module for data transmission 3G/GPRS


Module for data transmission Wi-Fi 


Module for current loop  (4-20mA)

Optional accessories


Internal lithium battery for day-time operation with urban lightning network


Internal lithium battery with autonomy of 7 days


Smart charger for battery BA120 or BA127 model 


Solar panel kit (BA120 Battery required)


Extender cable for preamp and microphone


Outdoor kit for TA120 sensor. It includes PV120 windscreen


Windscreen for TA120 sensor 


CESVA Noise Monitoring System