ETS SM7 Specsheet
SM7
Audio Surveillance
Electronic Technical Services Inc.
211 Conchas SE
Albuquerque, NM 87123
PH 505-888-3923 FAX 505-888-3926
Website: www.etsnm.com
Description
Complete 4 zone, manual
switching, audio surveillance
system. Can be used
independently for monitoring live
audio or with tape recorders for
recording and playback. Two
modes of operation: Switcher
(select one of four 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.
• Warning label.
Options
• SM1S surface mount adapter for SM1.
• White (standard) or ivory face plate.
• RM3 Rack mount.
Wiring Requirements
• Stranded 22-gauge, 2-conductor
shielded cable. Distances up to 1000’.
Caution
It may be against the law to install this equipment in
certain environments. It is the responsibility of the
installation company and end user to comply with state
and federal laws. If you are unfamiliar with these laws,
consult a qualified attorney.
Warranty
1 year parts and labor.
Kit
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.
• Easy cable run termination.
• Flush or surface mountable.
• 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, etc.
• All settings stored in non-volatile memory.
• 1 Watt Power amplifier.
• 3” full range speaker.
• Tape monitor switch.
• 3.5mm Headphone jack.
• Power: 12 VDC @ 250mA
• Reverse polarity protected and fused.
• Dimensions W 5.57 x L 5.57 x H 1.52
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