Soundscape intelligence for indoor areas. Our automated acoustic monitors for industry and workplace deliver information you can act on.



The AS180 Sonisens is an indoor sound level monitor designed to collect and analyse sound level readings in any application.

This automated sound level sensor can be integrated into your building network to provide continuous measurements of acoustic parameters in your space.

The rugged design and versatile installation kit means you can monitor sound levels discreetly in any environment. Whether you want to assess workplace noise exposure on the factory floor or understand patient recuperation in a hospital ward, we can help you to capture the information you need.


Where can I use it?

Indoor acoustic monitoring covers a wide range of applications, from health and safety to smart buildings. We supply rugged equipment that can be deployed in any setting and our Sonitus Cloud reporting platform can analyse readings to give you insights into your space.

Workplace noise exposure

Monitor noise at workstations to assess the need for hearing protection and conservation.

Smart City by Mada Creative from the Noun Project
Smart building acoustics

Use sound to understand employee comfort. Gain insights into real estate usage and how to improve your spaces.

Hospital patient comfort

Monitor sound trends in your hospital ward to make sure that patient recovery is not interrupted. Share insights with your team.

Machine condition checks

Monitor sound levels continuously to check for any change in performance. Detect maintenance issues automatically.

Noise complaint checks

Monitor sound levels continuously inside properties affected by noise to understand long term trends.

Construction noise

Monitor noise inside occupied parts of your building during fit out works or renovations.

wave pattern


Key features

  • Accurate to IEC 61672 Class 1
  • Measure LEQ, L05, L10, L50, L90, L95 and LMAX
  • A and C frequency weighting
  • Frequency analysis option - 1/1 or 1/3 octaves
  • Fast and Slow time weighting
  • Flexible logging times from 1 to 30 minutes
  • Large memory for long-term data storage
  • Wi-Fi and Ethernet connection for easy integration
  • Optional 4G modem for independent communications
  • User interface using web browser for simple set up
  • Automatic upload to secure cloud-hosted analysis system
  • Versatile mounting options and microphone connections
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IEC 61672 Class 1

Dynamic range

30 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 Ethernet


175mm x 125mm x 45mm

Weight (full kit)


Operating temperature

-10°C to 50°C

Operating humidity

0% to 95% RH

Power input

110V to 240V AC

Sonisens power input

8V to 16V DC

Power supply

Mains adaptor or power over ethernet

Power consumption


Documents and downloads

Product flyer

All the tech specs and product features. If you need more specific information just get in contact.


Installation guide

We have dedicated installation guides for different application areas. Get in touch to learn how we can help.

Learn more

Solution design

We can help with setting up your monitoring plans to make sure you get the best measurements for your job.

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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?

Automatically of course. Just connect the microphone and power up the monitor and measurement starts within minutes. The monitor will continue logging sound levels until power is removed.

How do I install the microphone?

The microphone for the Sonisens unit can either be attached to the front of the monitor or extended on a cable. The standard cable is 2m long but it can be extended. The choice of how you attached the microphone is dependent on where you can place the device to get a good measurement. The Sonisens is also supplied with a microphone mounting fixing. This small bracket allows you to connect the microphone in a number of ways to any surface. So you can place it on a wall, ceiling or anywhere else. There are some considerations for good acoustic measurement, get in touch with us if you have any questions.

How do the communications and data upload work?

Each Sonisens device has two network connection options; Wi-Fi and Ethernet. One of these is used for sending readings back to our cloud platform and the other is for the user interface (set up and configuration). Which connection you use is up to you.

When you first connect to the Sonisens device you can choose which connection is going to use the internet to return readings. You enter your settings e.g. Wi-Fi network name and password and then reboot the device. Everything else is automated. The readings are pushed to the Sonitus Cloud for analysis.

If you want to use the Sonisens independently of any other networks then you can choose to add the optional 4G modem with our international SIM card.

How do I connect the Sonisens to my network?

The Sonisens will measure automatically even without a network connection. But it needs a link to the internet to upload readings to the Sonitus Cloud. If your building or organisation has an IT department then you might need to work with them to get the Sonisens unit online (we can help with that too). The Sonisens monitor uses secure data transfer protocols that should not cause any concern for network admins.

If you have a direct network link to the internet that uses DHCP then just then just connect the monitor into the network and upload is automatic.

How do I access the readings?

When you receive one of our sound level monitors we provide a secure login to our Sonitus Cloud platform which gives access to all your readings. Using these online tools you can access readings, plot graphs, export spreadsheets and set up automated analysis functions for processing your data.

All your readings are stored on the device and can be downloaded for analysis or back up.

Can I send the readings to my own dashboard?

Each device is connected to the Sonitus Cloud for status checks and data upload. If you want to send the readings to your own software then we can export the data over FTP or API. Just get in touch with us and we'll set up a transfer that works with your system.

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