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2 zone, audio surveillance kit, designed to connect directly, to audio recorders


ETS SMI-3 is a 2 zone audio surveillance kit. It is designed to connect directly to audio recorders, video recorders, DVRs, remote monitoring equipment or CCTV monitors (with built in speakers).

ETS SMI-3 is a complete audio surveillance kit to serve you the best. It has 2ea SM1 microphone with SMI-2 interface box. It is also provided with 2ez 3' RCA or 3.5mm RCA Patch cable. The SM1 mounting screws are also provided. For the warning and instructions part a warning label and installation instructions are also there.

ETS SMI-3 Microphone is an Omni-directional electret element with 25' range in all directions. The frequency response is 200Hz-16Khz. It has a low-noise MOSFET Pre-amplifier. It also has a selectable treble boost circuit and limiter circuit with On/Off option. It requires 12VDC AC adapter. It enhances clarity of time lapse recording.

Ease of Installing
ETS SMI-3 can be flush mounted on a single gang electrical box. The 3 position Euro-style connector makes cable termination fast and clean.




SMI-3 2 Channel Audio Surveillance kit Features:

  • 2ea SM1 microphone
  • SMI-2 interface box
  • Mounting screws (SM1s)
  • 2ea Warning label
  • 1ea AC adaptor
  • 2ea 3' 3.5mm or RCA patch cable
  • Installation instructions

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