ETS SM1-TRW Specsheet

Sound Surveillance tm

SM1-TRW Omni-directional

Pre-amplified Microphone

Description

High performance, weather resistant
Omni-directional, pre-amplified
microphone for fixed location security
applications where vandalism is of
concern. Electret element is mounted in
a special housing which is out of reach to
objects inserted into the sound holes. 25’
pickup pattern in all directions. Built in
limiter circuit automatically lowers the
output level during loud sound intervals.
Stainless steel plate mounts flush or on a
single gang electrical box.

Connects directly to our switcher / mixer /
amplifiers or use one of our many
interface products to make fast and clean
connections to DVRs or remote
monitoring equipment.

Includes:

• SM1-TRW flush mount microphone.

• Sealing gasket

• Mounting screws.

• Warning label.

• Installation instructions.

Wiring requirements:

2 conductor shielded (with drain wire) 22
gauge stranded. Max cable length 1500’.

Caution

It is the responsibility of the installation
company and end user to install this audio
surveillance equipment in compliance with
state and federal privacy laws. If you are
unfamiliar with these laws, consult a qualified
attorney.

SM1-TRW Specifications

• Omni-directional 25' pickup pattern

•

Low noise MOSFET pre-amplifier.

• Adjustable gain.

• 200Hz-16Khz Frequency response.

• Internal .5" thick windscreen.

• Line level unbalanced output.

• Limiter circuit selectable on/off.

• Treble boost selectable on/off.

• 3 position Euro-style connector makes

cable termination fast and clean.

• Power: 12VDC @ 10mA.

• On-board voltage regulator and RFI

filtering.

• Conformal coated circuit board.

• Stainless steel plate mounts flush or on

a single gang electrical box.

• Includes outdoor sealing gasket

• Dimensions: L 4.5” W 2.7” H 1.1”