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SA-1A is a sound activated switch designed for applications where audio is required once a predetermined amplitude threshold has been exceeded. Additionally, the unit has two sets of relay contacts for activating cameras, lights, machinery or other annunciations. Automatic re-set is adjustable between 0.5 to 60 seconds. When used with Louroe Microphone and Base Station, the SA-1A is powered by the base station. As a stand alone unit (without a base station) 12 Vdc power is required.

  • Sound activated switch
  • Adjustable ‘Sensitivity’ potentiometer
  • Provision for balanced audio source
  • Two threshold-triggered relays
  • Adjustable relay latching time – 500ms to 60s
  • Alarm LED


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5-Year warranty
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Audio Monitoring Notice

When this equipment is used as part of an audio monitoring system, the law requires that the public be given notice of AUDIO MONITORING ON THE PREMISES.
Two decal notices are included with each microphone shipped.

Federal Law References: Federal Regulations, US Code, Title 18, Crime and Criminal Procedure. Sec 2510.


What's in the box

SA-1A, AD-1, (2) Single RCA Cables (Cable Length 6ft.)

Installation Requirements



  • All Louroe base stations
  • NVR


Use Cases


6.125″ L x 4.625″ W x 1.875″ H

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How to Buy

United States and Canada
Louroe sells products through a network of dealers and distributors across the United States and Canada. Find your local Louroe Distributor on the locator portal.
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Latin America
Please contact LAR Group, the Louroe representative group for Latin America including the Caribbean.
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Other Worldwide Regions
For regions outside of North America, Latin America and the Caribbean, please contact Louroe directly at (888) 265-8474 or via email on our contact form.
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