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The MS-1-ML is a in-line Mic Level Audio Mute Switch that is used for 3rd party Audio Surveillance and monitoring systems, when microphone audio muting is required. The MS-1-ML contains a built-in rocker switch mounted to a single gang stainless steel face plate. This is to mute/disable the audio feed to 3rd party recording devices such as CCTV camera’s that accept external microphone audio. It prevents the operator from listening in to the microphone when it is not required. The MS-1-ML fits into a single in-wall gang back box (not included) or surface mount gang box for mounting to a wall or any flat surface.

Part No: MS-1-ML, (LE-333)

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2-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

  • 1 X MS-1-ML, mic level audio mute switch
  • 1 X 12Vdc, 1.5A power supply with 10 ft. cord
  • 1 X Instruction manual

Installation Requirements

Requires  2 Conductor shielded cable, 22 gauge with a 24 gauge drain wire. West Penn 452, Belden 8451 or Equivalent Cable.

For use in walls, requires a single gang J Box (Not Included). For mounting in cabinets or other flat surfaces, use a Surface Mount J Box, (Not Included).


2 ¾" W x 4 ½" H x 1.11”
Switch contact
8A @125Vac
Supply Voltage
303 Stainless Steel
Single gang electrical box (not included)
2.5 oz
Shipping Weight
1 lb

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Have a question about the MS-1-ML? Contact us directly.
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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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