Powers and mixes the audio of 2 Sound Surveillance tm microphones into one un-balanced line level RCA (or 3.5mm) Connects to a DVR, I/P camera etc. audio “line input”. Use to expand the coverage of one zone using 2microphones or monitor 2 separate zones mixed together.

Includes

2ea SM1 microphone

SMM2 Microphone Mixer.

12 VDC AC adapter.

1 each 3’ RCA or 3.5mm patch

cable.

2ea. warning labels

Installation instructions.

Options

SPECIFY: RCA OR 3.5mm output

connector.

Wiring Requirements

Microphone cable runs: Stranded 22-

gauge, 2-conductor shielded cable.

Distances up to 1000 feet each.

SM1 Microphone Specifications

Omni-directional Electret element.

 25’ range in all directions.

Frequency response: 200-16Khz.

Low noise MOSFET pre-amplifier.

Line level, unbalanced output.

Adjustable gain.

Treble boost circuit. Selectable on/off.

Enhances clarity of time lapse recordings.

Limiter circuit. Selectable on/off.

3 position Euro-style connector makes

cable termination fast and clean.

Flush mountable. Can be mounted on a single

gang electrical box.

Power: 12 VDC @ 10mA

SMM2 Microphone Mixer Specifications

Standard RCA or 3.5mm jack for

connection to DVRs etc.

Line level (0db) output level.

Euro-style connectors makes cable

terminations fast and clean.

Separate volume control for each

microphone.

LED power indicator.

Power:12 VDC @ 20mA

Reverse polarity protected.