Sound Level Monitor

The EM2030 is a fully automated, remote sound level monitor. Designed for simple operation and reliability in tough environments.



The EM2030 is intended for use in situations where you need reliable measurements with the minimum amount of effort.

Just switch on the power to start monitoring and all readings will automatically be uploaded to our online reporting system.

The EM2030 kit consists of a rugged measurement unit, weatherproof outdoor microphone, a microphone mounting stand with a cable and a mains power supply. Battery supply options are also available.

System set up and configuration is over Wi-Fi link and can be done with a laptop, tablet or smart phone.

This is ideal for applications where access or safety are an issue, such as construction sites, industrial or road side installations.

The EM2030 is supported by our powerful online analysis and reporting system which lets you access your sound level readings from anywhere.


So what can it do?

We work with our customers to make sure the equipment we make does exactly what they need, out of the box.

Gear by Barudak Lier from the Noun Project
Automated operation

Save time and costs by reducing site visits.

tick by Adrien Coquet from the Noun Project
Email and SMS alerts

Live control for key project stakeholders.

users by Sergey Novosyolov from the Noun Project
Advanced measurement

Measure all relevant parameters including 1/3 octave analysis.

read by Serhii Smirnov from the Noun Project
Capture audio samples

Listen back online to easily identify noise sources.

world by Fernanddo Santtander from the Noun Project
Remote performance alerts

Get notifications if your equipment is offline, giving you complete peace of mind.

support by Barudak Lier from the Noun Project
Simple field operation

Save time on site setups, just power up and start measuring.

wave pattern


Key features

  • Accurate to IEC 61672 Class 1
  • Measure LEQ, L05, L10, L50, L90, L95 and LMAX
  • A and C frequency weighting
  • Audio capture option
  • Frequency analysis option - 1/1 or 1/3 octaves
  • Fast and Slow time weighting
  • Flexible logging times from 1 to 30 minutes
  • Weatherproof microphone with heater option
  • Large memory for long-term data storage
  • Wi-Fi interface using web browser for easy configuration
  • Simple calibration
  • Automatic upload to secure cloud-hosted analysis system
  • Rugged design
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IEC 61672 Class 1

Dynamic range

16 to 121dB(A)

Frequency range

20Hz to 20kHz

Sampling frequency

A and C weighting

Measurement parameters

LEQ, L05, L10, L50, L90, L95 and LMAX

Measurement period

1, 5, 10, 15 and 30 minute logging intervals

Data storage

5 years (at 5 minute intervals)

Microphone sensitivity


Microphone connection


Microphone power supply

Constant current ICP


802.11b/g Wi-Fi and 3G/4G cellular

Enclosure protection



110mm x 140mm x 60mm

Weight (full kit)


Operating temperature

-10°C to 50°C

Operating humidity

0% to 95% RH

Power input

110V to 240V AC

EM2030 power input

9V to 15V DC

Power consumption


Documents and downloads

Product flyer

Have a look at the flyer to get all the tech specs and product features.


User manual

Read the manual for detailed information and instructions.



Check out a sample cert from our calibration lab.



We have tried to answer the most common questions we are asked here.

Contact Support

If you have a question that we have not covered then just get in touch and we'll be happy to help.

How do I set up and start a measurement?

Measuring really couldn't be easier. Just connect the microphone and plug in the EM2030 and measurement starts automatically. The monitor will continue logging sound levels until power is removed. Changing the measurement settings is simple too. The user interface to the EM2030 is through a web browser over Wi-Fi link, so you can connect using a laptop or smart phone. We know it can be difficult to make changes to configurations when equipment is already installed, we've been there. So the EM2030 is different, there are no small buttons or screens and no complicated menus to look through when you are on site. Simply connect to the Wi-Fi network and log in using your favourite browser. You can download readings, calibrate the monitor and change the measurement set up. Then just reboot the system and your changes will be applied.

What happens when the power goes off?

No problem. The EM2030 is fully automated so it will just start measuring again as soon as power comes back on. And what's more, we will know if your measurement site goes down. Our performance monitoring software checks to ensure that your measurement site is reporting on schedule, so if power goes off we will email you to let you know.

How do the communications and data upload work?

That's automated too. The EM2030 comes with a GSM modem installed and we provide the SIM card to work on the local 3G/4G network. Readings are automatically uploaded to our database every day so that you can access everything online.

Our cloud based software lets you manage your measurement sites and analyse your data. There is no need for a phone contract or trying to configure network settings. The data costs are part of our pricing model and are covered by an annual payment.

Will it work in my country or city?

We have an international data solution that lets our equipment operate out of the box in almost 200 countries. This is still dependent on good network coverage in the area. Data costs and speeds can vary between networks and countries, so get in touch with us and we can find the best solution for your project.

How do I access the readings?

When you receive one of our sound level monitoring stations we provide a secure login to our website which gives access to all your readings. Using this platform you can access raw data files, plot graphs, export spreadsheets and set up automated analysis functions for processing your data.

You can also connect to the EM2030 over the local Wi-Fi interface. All your readings are stored on the device and can be downloaded for analysis or back up.

How do I calibrate the EM2030?

You can calibrate the EM2030 easily in the field using an acoustic calibrator. Simply pop the weather protection kit off the top of the microphone and place the acoustic calibrator over the top.

Connect to the user interface to see the levels and run the calibration routine.

The whole process should take about two minutes.

How often is laboratory calibration needed?

We recommend that the EM2030 should undergo periodic testing to IEC 61672-3 every 2 years.

This can be carried out at our offices in Dublin or throughout a network of international partners. If you have a local laboratory that you work with then we can support them with all the documentation they need for calibrating the equipment.

We focus on what's important