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SoundEar 3 Advanced Noise Warning Sign

soundear 3 noise warning sign
SoundEar 3


The SoundEar 3 is a data logging noise sign and comes complete with software to configure, download and display the results.

  • Display live results
  • Configure the noise sign
    • Multiple trigger levels with day / night settings
    • Data logging settings
    • Digital display settings
  • Download measurements


The software is included with the SoundEar 3 at no extra charge. It is designed for all recent versions of Windows. It communicates with the sign via the computer's USB port. Downloads and configuration can be carried out via a memory stick, so you don't have to take the sign down from the wall each time.

soundear software


Live and Historic Measurements

With a SoundEar 3 connected to the computer's USB port, the software can show the sound levels in real time.

To download historic measurements it is not necessary to connect the sign to the computer. You can plug a standard USB stick into the sign and it will automatically transfer all its measurements. With the memory stick connected to the computer the SoundEar software will now download the measurements. In the image above you can see the sound levels graphed over a 24 hour period.

Data Logging Settings

The SoundEar 3 stores noise measurements in its internal memory. You can configure it to store a minimal amount of information for longer, or to store everything for a shorter period of time. For example, storing the "A" Weighted Slow Sound Level every second will fill the internal memory in just over 90 days.

Not enough? You can configure the sign to store the measurements directly to a memory stick, giving almost limitless storage times.

Digital Display Settings

The SoundEar software can configure the sign's digital display (the red numbers in the middle) to show:

  • Slow Sound Level dB(A)
  • LAeq 15 (fifteen minute average)
  • Alarm Level
  • Time
  • Nothing (the digital display will be off)

Although the default is to show the sound level, it can be useful to turn this off if it causes confusion (not everybody understands dB) or if it causes people to make noise to see how loud they are!

Trigger Settings

You can use the software to set trigger levels and times for each of the lights - green, yellow and red. For each of the three lights you can set:

  • Lit or Flashing
  • The levels between which it is lit/flashing
  • Trigger based on:
    • dB(A) Fast or dB(A) Slow
    • Leq15, Leq30 or Leq60 (15 minute, 30 minute or 60 minute average)
    • How long the sound should be exceeded before lighting (avoid lighting up at the slightest exceedance)
    • How long the light should stay on for

You can also have another set of triggers for night time, in case you have an environment, such as a hospital, where the acceptable sound levels are lower at night.

Analog Output

Using the software you can set the output from the sign to be either a DC level (0 to 10V) or current loop (4-20mA) for integrating into other logging and monitoring systems. You can also set the minimum and maximum sound levels that are then mapped onto this DC or current loop output.

Microphone Calibration

If you have a Sound Level Calibrator and need to ensure the accurate operation of the SoundEar 3 then the software deals with this. Connect the SoundEar 3 to the software, connect a microphone extension cable and fit the calibrator to the microphone. The software Microphone Calibration option will then deal with the process of checking and adjusting.

SoundEar 3 Noise Sign - Data Logging - Ear Symbol
In stock
Five Noise Warning Signs and one Noise Meter
1 week
More pricing information

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Prices and Ordering

The SoundEar 3 noise warning sign with power adapter and software.

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Price (USD)
SoundEar 3 Noise Sign - Data Logging - Ear Symbol
In stock


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