ETS STW3 Specsheet
STW3
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
Single zone 2 way audio
surveillance system. Can be used
independently for monitoring live
audio or with tape recorders for
recording and playback.
Kit Includes
• STW1 Microphone/speaker.
• STW2 Base station.
• 16 VAC AC adapter.
• 3’ Dual RCA Patch cable.
• Warning label.
Options
• Call switch button: STW1-C.
• STW1-S surface Mount adapter.
• RM-4 Rack mount.
Wiring Requirements
• Microphone: stranded 22-gauge, 2-
conductor shielded cable. 1000’ max.
• Speaker: 20-gauge 2 conductor
1000’ max.
• Call switch: 22-gauge, 2 conductor.
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
STW1 Mic./speaker Specifications
• Omni-directional element w/25’ range.
• Low noise MOSFET pre-amplifier.
• Line level, unbalanced output.
• Adjustable gain.
• Treble boost circuit. Selectable on/off.
• Limiter circuit. Selectable on/off.
• Easy cable run termination.
• Flush or surface mountable.
• Power: 12 VDC @ 10mA.
• 2.25” .25w speaker.
• 70V line speaker input.
• Stainless steel cover plate.
STW2 Base station
• Built in talk-back microphone & pre-amp.
• 70V Line speaker output.
• Call switch input.
• Remote speaker volume control.
• Standard RCA jacks for VTR connections.
• 1 Watt Power amplifier.
• 3” full range speaker.
• Tape monitor switch.
• 3.5mm Headphone jack.
• Power: 16 VAC @ 250mA
• Dimensions W 4.14 x L 5.44 x H 1.52
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