Noise Compass Nor1297

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Noise Compass Nor1297

Enquiry Item

Noise monitoring with direction One of the greatest challenges with unattended noise monitoring is to ensure that the monitored site really is the source being measured.

What is making the noise?

Is it the construction site, a nearby railway or an aircraft?


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Product Features

Horizontal angle range: 0 to 360 degrees
Vertical angle range: – 90 to 90 degrees
Sound pressure level range: 40 to 123 dB SPL re. 20 µPa
Operating conditions: Free-field
Horizontal accuracy: ± 7.5 deg. , std. dev. typ. 2.0 deg.
Vertical accuracy: ± 10 deg. , std. dev. typ. 4.0 deg.
Calibration: Factory calibrated with certificate
Operation principle: Multi-correlation
Time resolution: 100 ms
Filtering: A-weighting
Time averaging: Exponential time and 10 ms max
Instrument compatibility: Nor145 and Nor150
Software compatibility: NorCloud and NorReview
Mounting: Nor1216 and Nor1217 compatible
Ingress protection: IP55
Connectivity: Ethernet 100 mbps
Power supply: 5V to 15 V passive power-over-ethernet

Product Applications

Norsonic was the first company to introduce sound recording of noise events in a sound level meter. This greatly improved the work to identify a noise event and to judge whether it should be excluded or not from the overall noise level. However, it’s quite time consuming to listen through numerous sound recordings.

  • Construction site monitoring
  • Harbour monitoring
  • Airport monitoring
  • Road/railway monitoring
  • Plant monitoring


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