Complete 4 zone, manual switching, audio surveillance system. Can be used independently for monitoring live audio or with tape recorders / DVRs for recording and playback. Two modes of operation: Switcher (select one of 4 zones) or mixer (select any combination of zones).

Kit Includes

4 SM1 Pre-amplified microphones.

SM4 Switcher / mixer / amplifier.

12 VDC AC adapter.

3’ Dual RCA Patch cable.

4 Warning labels.

Options

RM1, RM2 Rack mounts.

Wiring Requirements

Stranded 22-gauge, 2-conductor

shielded cable with drain wire.

Max cable length, each mic. 1500’.

SM1 Microphone Specifications

Omni-directional element w/25’ range.

Low noise MOSFET preamplifier.

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 mount.

Power: 12 VDC @ 10mA.

SM4 Switcher / Mixer Specifications

In/out switches and level controls for each microphone channel.

Standard RCA jacks for connection to

tape recorders, DVRs, etc.

All settings stored in non-volatile memory.

1 Watt power amplifier & 3” speaker.

Euro-style connectors makes

cable terminations fast and clean.

Tape monitor switch.

3.5mm Headphone jack.

Power: 12 VDC @ 250mA

Dimensions: L 5.5 x W 5.5 x H 1.5