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Home > Products > Noise Monitors > Sentry Music Noise Controller > External Microphone

Sentry Music Noise Controller

formula sound sentry - music noise control
Sentry Music Noise Controller

Sentry External Microphone

The Sentry comes with an internal microphone, seen behind the small grill in the image on the right.

Sometimes the most convenient location for mounting the Sentry is not the best place to measure the noise. In this case you can use the SEN-MIC30 Microphone, which comes with a 30m / 100ft microphone extension cable.

  • Wide range omnidirectional microphone
  • Unobtrusive ceiling or panel mounted
  • Microphone extension cable included (30m / 100ft)


external microphone with long extension cable

External Microphone
with 30m / 100ft Extension Cable
panel mounted microphone


The microphone is designed to be mounted unobtrusively in a ceiling or wall panel, leaving just the grill showing. This is to ensure that it does not attract attention as shouting into the microphone can cause unwanted power cut-off.

For the optional External Microphone with extension cable, please add item code SEN-MIC30 at $324.00 to your order.


Music Noise Monitor and Controller
In stock
Contactor for Sentry Music Controller
In stock
More pricing information

Technical Support

For more detailed information about installation and wiring of the Sentry please visit our Technical Support web site.

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How to Buy

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Prices and Ordering

Sentry Music Noise Controller and its optional parts.

Order Code
Price (USD)
Music Noise Monitor and Controller
In stock
32 Amp Fused Contactor for Sentry Music Controller
In stock
External Microphone for Sentry with 30m / 100ft Cable
In stock
Push Button Remote Reset for Sentry Music Controller
Key Switch Remote Reset for Sentry Music Controller
Remote Display for Sentry Music Controller
7 Day timer for Sentry Music Controller
Reset Counter for Sentry Music Controller


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